| 释义 |
back·s 英bæk美bæk COCA⁶⁵⁹⁸BNC⁶¹³⁵Economist³⁸⁸⁰
基本双解英英易错辨析搭配短语近义反义句型用法例句例句
n.后面¹⁵;背脊³;靠背⁷;后背²;后卫¹⁰vt.支持¹⁵;后退²⁴adv.向后地⁵adj.向后的⁷;后面的¹¹;偏远的;过时的;积欠的¹原型back的三单形容词backless过去分词backed现在分词backing三单backs
n.名词
S后部,反面part or surface of an object that is furthest from the front; part that is less used, less visible or less important C背,背部rear part of the human body from the neck to the buttocks C椅背part of a chair against which a seated person's back rests; part of a garment covering the back
v.动词
vt. & vi. 使后退,使倒退cause to go backward vt. 支持support
adj.形容词
A后边的situated behind A过去的,过期的of or for a past time A迟交的,欠交的owed for a time in the past; overdue A后元音的of a vowel formed at the back of the mouth
adv.副词
往后,在后面towards or at the rear; away from the front or centre 控制住,忍住under control 恢复; 上溯in an earlier position, condition or stage; into the past 回报in return
Noun:
the posterior part of a human or animal body from the neck to the end of the spine;his back was nicely tanned the side that goes last or is not normally seen;he wrote the date on the back of the photograph the part of something that is furthest from the normal viewer;he stood at the back of the stage it was hidden in the rear of the store football a person who plays in the backfieldthe series of vertebrae forming the axis of the skeleton and protecting the spinal cord;the fall broke his back the protective covering on the front, back, and spine of a book;the book had a leather binding the part of a garment that covers the back of your body;they pinned a `kick me' sign on his back a support that you can lean against while sitting;the back of the dental chair was adjustable American football the position of a player on a football team who is stationed behind the line of scrimmage
Adjective:
related to or located at the back;the back yard the back entrance located at or near the back of an animal;back or hind legs the hinder part of a carcass of an earlier date;back issues of the magazine
Adverb:
in or to or toward a former location;she went back to her parents' house at or to or toward the back or rear;he moved back tripped when he stepped backward she looked rearward out the window of the car in or to or toward an original condition;he went back to sleep in or to or toward a past time;set the clocks back an hour never look back lovers of the past looking fondly backward in reply;he wrote back three days later in repayment or retaliation;we paid back everything we had borrowed he hit me and I hit him back I was kept in after school for talking back to the teacher
Verb:
be behind; approve of;He plumped for the Labor Party I backed Kennedy in 1960 travel backward;back into the driveway The car backed up and hit the tree give support or one's approval to;I'll second that motion I can't back this plan endorse a new project cause to travel backward;back the car into the parking spot support financial backing for;back this enterprise be in back of;My garage backs their yard place a bet on;Which horse are you backing? I'm betting on the new horse shift to a counterclockwise direction;the wind backed establish as valid or genuine;Can you back up your claims? strengthen by providing with a back or backing
n.名词
他仰卧着并凝视着天花板。❌ He lay to his back and stared up at the ceiling. ✔️ He lay on his back and stared up at the ceiling. 析 表示“仰卧”,应该说lie on one's back,介词用on不用to。 他租了一间后房。❌ He rented a room in back of the house. ✔️ He rented a room in the back of the house. 析 in back of表示“在…后面”,相当于behind。in the back of表示“在…后部”,相当于in the rear part of。“一间后房”应该是a room in the back of the house。 房子后面有一块菜园。❌ There is a vegetable garden in the back of the house. ✔️ At the back of the house there is a vegetable garden. 析 表示“在…之外的后面部分”,应该说at the back of,不用in the back of。
adv.副词
你看完这本书后,请把它还回图书馆。❌ When you finish the book, please return it back to the library. ✔️ When you finish the book, please return it to the library. 析 return表示“归还,送回”,含有“回”的含义,不能再用back。
n.名词
at the back of, in the back of这两个短语的意思相近,都是“在…后面”的意思。其区别在于: 1.at the back of指在某地方之外的后面部分; in the back of的意思是指在某地方之内的后面部分。 2.at the back of也可引申为“支持”“在…印象中”,而in the back of没有此义。 turn one's back on, turn one's back to两者不同义,前者含有轻蔑的感情色彩,而后者没有这种色彩。例如: In the old society, the rich always turned their back on the poor.在旧社会,富人总是瞧不起穷人。
But Jack has turned his back to the trouble over it.可杰克并不把这件麻烦事放在心里。下面两句意思不同:Stand back, please.请往后站。
Stand behind, please.请在后面站着。下面两句意思不同:We all wish to see her back.我们都希望见到她回来。
We all wish to see the back of her.我们都希望她快点离开。前者用于直义,后者则含有“巴不得离去”的意味。
v.动词
back away, back off这两个短语的共同意思是“后退”,一般说可以互换,特别是指“因害怕而后退”。而在表示“后退让出地方”时,含义略有差异, back away强调目的,即“为让出地方而后退”,而back off则强调结果,即“因后退而让出了地方”。 back down, back off这两个短语的共同意思是“放弃论点、观点或权利”,其差别在于back off主要用于美式英语。 back out, go back on这两个短语都有“言而无信”之意。其区别在于： 1.back out指主体违背或撤销其过去一度许下的诺言，或从所承担的义务、所参与的计划中撤出来；而go back on仅指“食言”，即说话不算数。 2.back out后可接of或from短语说明失信的具体内容；go back on后可接to短语或动词不定式说明具体的对象。 3.go back on直接接sb时往往含“不忠”或“出卖”的意思，而back out无此意义及用法。 back, champion, support这组词的共同意思是“支持”。它们的区别在于:back多指给予物质或道义上的资助,有“作后台”的意味; support指支撑重量或作为支柱或给予需要的力量,以防某人或某物跌倒或陷下; 而champion则指支持他人或某项运动而去奋斗、辩论或演说。例如: Don't worry. I will back you up.不要忧虑,我支持你。
The teammates supported the injured player.队友扶着那受伤的球员。
We champion a just cause.我们支持正义的事业。
adv.副词
back, backwards这两个词都有“向…后；在…后”之意，表示方向时可互换。其区别在于：back侧重于方向或原始位置或状态的恢复；而backwards则侧重于动作进行的方式。 back, behind这两个词都有“在…之后”的意思。其区别在于:behind是介词,指在某物或某时间之后; back是副词,与另外的物〔时间〕无关。例如: But communications were back to normal this morning.但是今天上午通讯恢复了正常。
I want no monkey business behind my back.我不准任何人背着我捣鬼。be back, come back, get back, go back, return这组词组都可表示“回去”。其区别是： return与其他词相比有些书卷气; come back的意思是“回归”“回来”,指回到说话人所在的地方; go back指回到出发点,是一种非正式说法,常用于口语中; get back是回到原来的出发点; be back意为“回来了”,表示状态,是日常应用最广的非正式说法。例如: Did Duff come back?—Yes, he came back.达夫回来了吗?是的,他回来了。
Now let's go back to the beginning of the page.现在让我们回到这页的开头。
When he got back, he found that supper was over.当他回来的时候,他发现晚餐已经结束了。
I'll be back next Saturday.我将在下个星期六回来。bring back, call to mind, call up, come back to, think back这组短语都有“回忆起”的意思。其区别是： 1.在含意上，bring back指从现在的事物中引起对过去事情的回忆，含触景生情之意，主语是人时意为“记起；想起”，主语为事物时意为“使想起”；come back to和think back指“回忆起”某事物；call to mind主语是人时意为“记起；想起”，主语为事物时意为“使想起”；call up的含意与bring back相同，但主语通常为事物，不指人。 2.在用法上，bring back通常用memory作宾语；come back多用被想起的事物或it作主语，to后接表人的词或mind, memory等与记忆有关的词作宾语表示“回忆起”某事物；think back的主语多指人，如指事物则常与make作补语，back后常接“to〔on〕+被想起的事物”；call to mind不用于被动结构，其中的call为及物动词，其宾语多置于mind之后，mind可有物主代词修饰。 date back to, go back to, run back to, trace back to这组短语都指“追溯到”过去某时、某时期或过去发生的某事的意思。其区别是： date back to指“始于，追溯到”，强调某事物开始的时间，一般不用被动结构，常用一般时；go back to和run back to意思相同，但run back to少用，均多指友谊、家事的起源，强调从现在起回到过去开始的某一时期；trace back to与go back to, run back to意思相近，但更强调追根溯源。 hold back, keep back, put back, set back这组短语都有“推迟；延迟”的意思。其区别是： 1.从含意上说，hold back和keep back都表示“推迟”某事的进行或某人做某事，强调比通常或预定的时间要晚；put back和set back都指某事因某种原因而“被推迟”进行。 2.从用法上说，hold的宾语可以是人，也可以是物，可用于被动结构；put back和set back后可加to短语指被延期到未来的某时候进行，一般用被动结构。 back，backward，hind，behind这些词均有“在后，向后”之意。 back作为副词或形容词时，强调所修饰物的位置以及动作运动方向。 backward可用于人或物，指向后的，落后的或迟钝的。 hind指成对并且分前后的东西的“后面的”。 behind指一物同它物相对的位置或场所。 back，uphold，support，sustain，advocate这些动词均有“支持，支援，拥护”之意。 back通常指对论点、行动、事业等的强有力支持。 uphold既可指积极努力对陷入困境者的支持，也可指给某人在行动、道义或信仰上的支持。 support含义广泛，多指在道义上或物质上支持某人，也可指对某项事业的支持。 sustain侧重指连续不断的支持。 advocate多指通过写文章或发表演说等来支持或拥护，往往暗示提倡某事或为某事辩护。
用作名词 n.
动词+～break one's back拼命干,尽最大努力break the back of sth完成某事最艰难的部分get sb's back up触怒某人get off sb's back不再找某人的麻烦give sb one's back不理睬某人have one's back to the wall陷入绝境lean one's back against the wall以背靠墙put one's back into sth孜孜不倦地做某事see the back of赶走,撵走sit in the back坐在后面turn one's back on对…掉头不顾,轻视介词+～at sb's back幕后支持at the back在后部at the back of one's mind在脑中酝酿behind sb's back瞒着某人from the back从后面in the back of在…的后部in the back of the book书后的附录中in the back of one's mind下意识地,潜意识地lie on one's back仰卧on one's back仰天而卧,用背驮on the back of a magazine杂志的封底上～+介词back to back背靠背stand back to back背对背站着用作动词 v.～+副词back agilely机敏地支持back consistently一贯支持back contemptuously傲慢地支持back deliberately故意支持back discreetly谨慎地支持back strongly坚决支持back down退出back off后退,放弃back out不遵守back up支持,堵塞,后退～+介词back against面对,反对back by sb's influence在某人权势的支持下back away from从…避开back into the garage倒进车库back onto背朝着back through the gate倒出大门back dress with silk用绸布做衣服衬里用作形容词 adj.～+名词back door后门back seats后座back vowels后元音back yard后院用作副词 adv.动词+～answer back反驳，回嘴，顶嘴；还击bite back很快忍住说出秘密或冒犯他人的话blink back one's tears用眨眼来抑制泪水bounce back失意后恢复，回升bring back带回；归还；使回忆起；恢复bring back to health使恢复健康bring back to life使恢复生命call back回电话；叫回carry…back to使回想起choke back忍住，抑制claim back from要求收回，索回come back回来；又流行起来；恢复记忆；想起来；指制度、法律恢复cut back修剪；缩减date back to追溯到double back为躲避追捕原路返回；折叠起来，对折draw back from引开，拉开，缩回；撤回，取消；比赛中超越drive back迫使…后退；驾车返回drop back落后；后撤fall back后退，退却fall back on〔upon〕求助于，依赖feed back to反馈回…fold back折叠，折起get back回来，回到；失而复得；取回，恢复原位；对…报复get back into circulation重新恢复正常生活get back into harness病愈后重新工作get back to返回give back归还；恢复视力、自由等；反射出，照出go back on one's word背弃；食言go back to返回，归还，退回；重做某事，重操旧业；冬令制把钟表调回；追溯，时光返回到hand back to交还；物归原主hang back犹豫；退缩have back收回被借走、偷走等之某物；允许分手的配偶等返回hold back阻止前进；控制；抑制；由于谨慎、害怕而犹豫，踌躇；保留，扣住不发表，保密keep back from保持一定距离，克制住，挡住；隐瞒住，不让知道；扣留；留住；不付lie back往后靠坐；放松look back on回顾pay back归还；还清；报复play back放，放送唱片、磁带等pull back撤退，撤回push back逼迫；使撤退；把…推回原处put…back把…放回原处；倒拨时钟；使日期推迟；放慢；延迟；阻止put the clock back倒行逆施；开倒车read…back读出信息内容等以供核对refer…back to将文件等退回、交回给…予以某种处理；重新提及report back to归来报到；作调查汇报ring back再打电话；回电话roll back使卷起来；把录音带等卷回；浪潮退落；撤退，击退；过去的时光返回run back倒卷，倒回影片、录音带等run back over回顾；再次审议send back因不满意送回，退还商品或饭菜set back耽误，阻碍进展；使…破费；使建筑物坐落在离开…一定的距离settle back安坐在椅子里shrink back from由于害怕畏缩；退缩sit back在一旁闲着，袖手旁观spring back弹回stand back位于离…有一段距离的地方；保持距离以便更好地理解或判断；拒绝介入；退出step back后退take back使回来；归来；同意接受退货；重新任命被解职者；收回，撤回take sb back to使某人回想起talk back回嘴，顶嘴think back on回想，回忆think back to回想，回忆throw back扔回；揭去，拉开；阻击，耽误，击退；责备地向…重提throw back on迫使…依靠trace back to追溯；回溯turn back使折回，往回走whip back迅速返回或弹回win back赢回，夺回wind back磁带倒带；胶卷倒卷
用作名词n.at the back of支持 support at the back of mind在内心中 in one's thoughts, but without being of immediate or central concern back be to the wall处于绝境 in difficulties with no retreat back to back背靠背 back against back back to front前后颠倒 with the back placed where the front should be back to the drawing-board一切从头再来 restarting from the beginning be on one's back取笑〔烦扰〕某人 annoy, hinder or persecute sb behind one's back背着某人 without sb's knowledge or consent break the back of解决了最艰难的部分 finish the more or most difficult part of sth get on sb's back找某人的麻烦 persecute sb like the back of a bus难看的,丑陋的 ugly like the back of one's hand熟悉 intimately pat on the back对…表示赞扬 praise pat sb/oneself on the backIt can be very embarrassing to have to listen to someone patting you on the back in public.不得已而需要在大庭广众之下听人赞扬自己会使你很窘。
Her performance wasn't so wonderful—I don't know what cause she has to pat herself on the back.她的表演并不怎么精彩——我不知道她有什么理由自鸣得意。
The first minutes of his speech consisted mainly of patting himself on the back.他发言的前几分钟主要是自吹自擂。put one's back into竭尽全力 make a strenuous effort stay on sb's back纠缠 be in a tangle turn one's back on背弃 abandon; deliberately ignore you scratch my back and I will scratch yours为了与己方便而给某人以方便; 投之以桃,报之以李 you do me a favour and I will do you one in return 用作动词v.
back away v.+adv.
不愿考虑 be unwilling to consider an idea back awayThe crowd backed away to let the wounded man pass through.人群向后退,让受伤的人通过。back away from sthThe child backed away from the fierce dog.那孩子害怕那只恶狗,直往后退。back away from sthI could see she was backing away from the idea.我看得出来她不愿考虑这一意见。
back down v. + adv.
退让,退回去,撤销要求等( accept defeat in an argument, opinion, or claim; admit that one was wrong) back downI saw that she was right, so I had to back down.我看到她是正确的,所以我只好放弃原来的主张。
back into v. + prep.
使倒进… (cause to move back into sth) back into sthBe careful when you back into the garage, the doorway is very narrow.你把车倒入车库时要小心,门道很窄。back sth into sthNext you must learn how to back a car into a parking space.下一步你应该学会如何把车倒入停车的空地。
back onto v. + prep.
后面是,背靠着 be near to or have at the back back onto sthOur house backs onto a piece of woodland.我们的房屋后面是一块林地。
We chose this house because the garden backs onto the tennis courts.我们选择这一住宅是因为它的花园背靠着网球场。
back out v. + adv.
不遵守诺言、合同等,改变主意 fail to fulfil a promise, contract, etc.; change an idea back outI hope I can depend on you not to back out at the last moment.我希望能信赖你不至于在最后关头撒手不干。
Please don't try to back out now that everything's been arranged.既然一切都已安排妥当,请不要试图改变主意。
You said you would go; you can't back out now.你答应要去,你不能食言啊!back out of sthHe would like to back out of the contract, but we can't allow it.他想取消这个合同,但是我们不能答应。
back up v. + adv.
复制 make a copy of back sb/sth ⇔ upThe policeman wouldn't have believed me if you hadn't backed me up.如果当时没有你的支持,警察是不会相信我的。
He backed up his arguments with facts.他以事实支持自己的论点。back sth ⇔ upThe flood water from the storm backed up the pipes.暴雨引起的洪水堵塞了管道。back upYou'll have to back up and turn around.你将不得不往后退并转身。back sth ⇔ upMake sure you back up the disk before you turn the computer off.在你关机之前要确定磁盘已存档。用作形容词adj.take a back seat居于次要的地位; 知趣靠边 adopt an inconspicuous position or role through the back door走后门,通过不正当的秘密途径 in an unofficial way; indirectly 用作副词adv.answer back参见answer条。 back and forth来回地 from one place to another and back again repeatedly get one's own back报复have one's revenge go back on one's word参见go条。 hold back参见hold条。 keep back参见keep条。 pay back参见pay条。 there and back往返,来回 to a place and back again 近义词 go去for为the那to对于past过side边or或者aid援助end结束ebb退潮bat球棒ago以前stake桩ridge脊early早help帮助abet煽动tail后部down向下back后面turn翻转late迟的last持续game游戏ward病房spine脊柱boost提高stand站立since因为cover封面favor偏爱rear后面的hind后部的recede后退favour恩惠assist帮助uphold支持attest证明heel脚后跟breech后膛return返回recoil退却revert恢复hinder阻碍rachis脊椎gage抵押品insure保险support支持reverse逆转succour救助sustain支持promote促进bolster长枕certify证明stern严厉的confirm证实rebound弹回retreat撤退regress倒退endorse赞同prior优先的binding镶边earlier早的dated过时的finance金融backbone脊骨spinal脊骨的second第二的maintain维持rump鸟尾部backside臀部tail end尾端indorse 背书backrest靠背bygone过去的remote遥远的former前者的advocate提倡behind在…之后backwards向后encourage鼓励sponsor保证人fundament基础back down放弃turn tail逃跑plump for选定removed离开的distant疏远的plunk for支持faraway遥远的elapsed流逝的guarantee保证forward向前的backward向后的validate使生效retrogress倒退heretofore以前rearward在背后dorsum解背部previous以前的forwards向前地countenance面容corroborate确证bet on为 … 打赌rearwards向后方substantiate证实posterior在时间obsolete已废弃的hindmost最后方的vertebrae解椎骨spinal column脊柱punt方头或平底船…outermost最外方的befriend待 … 如友secluded与世隔绝的backtrack由原路返回retrocede后退(交还vertebral column脊柱out-of-the-way偏僻的hind-quarters后臀和腿back up因积聚而拥堵…go to bat for庇护辩护buttocks常复数臀部…stand behind后援, 做后盾…subsidize给与补助金或奖助金…rural农村的，乡村的，田园的…go backwards倒退, 退步; 堕落…patronize以高人一等的态度对待…反义词 foreheadhelppastfrontpriorformerstomachadvanceearlierelapsedoverduen. facestand byoutdatedpreviousapproachv. assistsupportadj. delayed
用作名词(n.There used to be a big and beautiful garden at the back of their house.以前在他们房子的后方是一个大花园。
There is a lot of useful information at the back of this dictionary.这本词典的后面附有很多有用的信息。
The last time I bought from a market trader I was given rotten fruit from the back of the pile.上次我在集市上买东西,小贩卖给我的是从水果堆后面拣出的烂水果。
I've got a sore place in my back.我背上有个地方痛。
He likes sitting in the back of the class.他一直喜欢坐在教室的后排。
Some fishes have gills on the back.一些鱼背上有刺。
There is a bird on the back of a piece of cloth.一块布的反面有一只鸟。
You write the address on the front of an envelope, not on the back of it.你把地址写在信封正面,而不是反面。
I am afraid my report for the past year is not a very cheerful one, it is the story of one calamity on the back of another.恐怕我关于去年的报告不令人愉快,那是一个接一个的灾难故事。
The little boy was dozing with his back against the chair.那个小男孩正靠在椅子上打盹。
Did you paint the back of the bookcase?你漆过书橱的背面吗?
My home lies back of the school.我家就在学校后面。
One of the backs was hurt in the match.其中一名后卫受了伤。用作动词v.
用作不及物动词
S+～+AThe horse backed suddenly.马突然向后倒退。
Don't back off.别打退堂鼓。
用作及物动词
S+～+ n./pron.I hope you will back my thought.我希望你能支持我的想法。
Can you back your story with facts?你能举出事实来证明你的话吗?
You could back the dress with silk.你可以给这件衣服加丝绸衬里。
All our books have now been backed.现在我们的书全部都包上了书皮。用作形容词adj.
用作定语
～+ n.On the back wall there is a map of China.后墙上有一幅中国地图。
He came through the back door.他从后门进来。
Does the back door have a lock on it?后门上锁没有?
He sat in a back seat in the car.他坐在车的后座上。
There is something wrong with the back wheels of the truck.卡车的后轮出了故障。
He clawed his way up from the back streets of Glasgow.他是从格拉斯哥的穷街陋巷里爬上来的。
The war is all back history now, and our two countries are good friends.这场战争已成为过去的历史,我们两国现在是友邦了。
He owed three months' back rent.他欠了3个月的租金。用作副词adv.
用作状语
The crowd fell back to let the fire engine through.人群向后退去,以便给消防车让路。
Our army forced the enemy to fall back.我军迫使敌军撤退。
I bent back too far and hurt my neck.我向后仰得过度了,扭伤了脖子。
I hope you'll never change back from the person you have recently become.你最近跟过去判若两人,我希望你不要故态复萌。
Students have no way of getting back at a teacher who marks their work unfairly.学生无法报复评分不公道的老师。
The sight of the garden bears back the days when we lived in Paris.见到那个花园使我们回想起当年住在巴黎时的日子。
It was he who bore back the latest news.是他带回了最新的消息。
用作表语
He will be back before the month is out.他将在月底前回来。
He is sure to be back soon.他不久一定会回来。
I shall be back this evening.I'm not sure what train.我今晚回去,但说不准哪趟火车。
After a year in the hospital, he's back in circulation.住了一年医院之后,他又活跃起来了。
用作宾语补足语
That smell of freshly baked bread carries me back!新烤面包的气味使我忆起往事!
May I borrow your pen?I'll bring it back tomorrow.我可以借用一下你的钢笔吗?我明天还。
Don't bend the book back, you'll damage it.别向后卷书,会弄坏的。
Would you carry the chairs back into the house for me?你能替我把这些椅子送回那个屋子里吗?
n.名词
back用作名词的基本意思是表示人的“背；背部”和表示某物的“后面；后部”。引申可作“椅背”“后襟”等解。用于球类运动则指“后卫”。 back作“后面”“背面”“反面”解时用单数形式,其前须加定冠词the。在表示较近的“后面,背面”时用on the back of；在表示较远的“后面”时用at the back of范围之外或in the back of范围之内，在美式英语中at〔in〕可省略。
v.动词
back的基本意思是“使后退”,指某人或某物回到原来的位置或状态。有时引申可表示“支持”,即“作后盾”。 back可用作及物动词或不及物动词,用作及物动词时接名词或代词作简单宾语。
adj.形容词
back表示位置或方向时意思是“后面的,往后的”。也可表示时间作“过去的,过期的”“迟交的,欠交的”解,在句中只用作定语。 back在语音学中也可作“后元音的”解。 back在句中只用作定语,不用于比较等级。
adv.副词
back用作副词的基本意思是“往后,在后面”,也可引申表示“忍住”“恢复”或“上溯”。 back常修饰动态动词如不及物动词go, come, get,及物动词bring, get, take等,在句中作状语,也可用作表语。 back和be连用可引申表示“恢复”; back和beat, hit, fight等动词连用可表示“打退”。 back作“来回；向后”解时一般不与turn连用。 注意如果动词本身已经表达了“相反动作”的意思,就不能再用back。 back用作副词时不用于比较等级。 again同back的意思相近，但用法不同：back与动词连用时，作为副词，常指退回到前一个状态，或是从与之前相反的状态返回去，而again不可这样用。again与动词连用时，表示“重复，再一次”。注意sell back和sell again的不同，前者是卖回给同一个人，后者是再次卖，卖给不同的人。当动词本身指“退回，返回”的意思时，不可再用back，而可以用again加强“退回，返回”的意思。在副词+动词+介词结构中，back和again都表示“回到上一状态”。Give me my watch back.NOT Give me my watch again.Can you play it again?The bike you sold me is too small.If we buy this house and then have to move somewhere else, how easy will it be to sell it again?Stefan can never return to his country again.I stood up, and then I sat back down again. back可以用在动词和主语之间，而again则不可以。 Take back your money.Count the money again, please.NOT Count again the money.back and forth，backwards and forwards以及to and fro意思相似，美国人常用第一种表达方式，而英国人习惯用后两种表达方式； back of同in back of有“在……后面”的意思，美国人常用，前者比后者使用普遍； back有时指“拖欠着的”，常见的搭配有back pay/salary欠薪，back rent欠租，back taxes欠税等； 注意as far back as the fifteenth century中第2个as后没有in。
副词82%,动词9%,名词5%,形容词4%
用作名词Three people can sit in thebackof this car.这车的后座可坐3个人。
It encouraged him to talk because hisbackhad stiffened in the night and it hurt truly now.他靠说话来鼓劲,因为他的背脊在夜里变得僵直,眼下真痛得厉害。
You'll make yourbackache if you carry those heavy buckets.如果你背那些沉重的桶，你的背会痛的。
John playsbackin the team.约翰在这个队打后卫。用作及物动词I'llbackyou up no matter what's happening.不论发生什么事,我都会支持你。
I found no evidence tobackyour interpretation.我找不到证据来支持你的解释。
You'll have tobackthe car up into the garage.你得倒车，开进车库。
He refused tobackaway from his position.他拒绝放弃自己的立场。用作副词Slacken your legs and slowly lieback.放松双腿, 慢慢向后躺下。
Standback! You're stepping on my toes.向后站！你踩在我的脚趾头上了。用作形容词The kangaroo uses itsbacklegs to jump.袋鼠是用牠的后脚在跳。
I bought somebackissues of science magazines yesterday.昨天我买了几本过期的科学杂志。 The “ hitchhikers” were then placed around America with messages on their backs asking About sponsorship people to help them reach a specific spot in Silicon Valley.
再把这些木雕放在全美各地，扮成“搭车旅行者”，背上还有些信息，内容是请送他们一程的人帮他们到达硅谷某地。 ecocn
The subjects could thus see their own backs, in stereo, as though they were sitting behind themselves.
这样，志愿者们就能够看到自己颇具立体感的背部，就好像他们正坐在自己的后面。 ecocn
But they are in danger of mentally turning their backs on the EU.
虽然没有脱离欧盟，但是在精神上已与欧盟背道而驰。 ecocn
His team is using aerial drones designed to track tiny reflective pieces of glass that have been attached to the backs of individual locusts with a drop of glue.
他的小组使用的是“空中雄蜂”，追踪蝗虫个体后背上的一块反射玻璃。这个玻璃是用一小滴胶水粘上去的。 hxen
Others descend from tilting apartment blocks, with plastic“ children” strapped to their backs.
还有些队员背着塑料小孩，从倾斜的住房下到地面。 yeeyan
Perhaps Muratov’s guide illuminated the church with a torch, but now it’s simply dark in here, and whatever scant light makes its way through the windows is blocked by tourists’ backs.
也许穆拉托夫的导游指南似火炬把这座教堂给照得明亮了，但现在这里却漆黑一片，从窗户射进来的微弱的光线被游客的后背给遮挡住了。 yeeyan
She cranes to look at our backs and sighs.
她伸长脖子看着我们的后背，叹着气。 yeeyan
She shouts at him and waves her finger in his face until he backs away.
她对着他怒吼，手指对着他的脸挠过去，直到他往后退。 yeeyan
Some of the defendants and their lawyers were sitting with their backs to us.
一些被告和他们的律师坐在一起，后背对着我们。 yeeyan
Standing up to relieve their backs thrust their heads into the vines, which are covered in pesticides.
如果站起来舒缓一下背部的话，他们的头就会戳到葡萄藤，那上面可都是农药。 ecocn
Still others drift in the wind or ride on the backs of flies.
甚至还有虫卵可以漂浮在空气中或者驮在苍蝇的背上。 yeeyan
The gull who looks upon an Outcast breaks the Law of the Flock, Gray- feathered backs were turned upon Jonathan from that moment onward, but he didn’t appear to notice.
朝弃儿看一眼的，就是违背了鸥群的法律。从那一刻起，海鸥们就把长满灰色羽毛的背朝向乔纳森，但他似乎并不理会。 putclub
The researchers found about1000 species total, which were fairly consistent from person to person; it turns out we all have similar tenants in our noses and on our backs.
研究人员发现了大约1000个种群，而且从个体到个体间分布一致；原来人们的鼻子里、背上都住的房客都大同小异。 yeeyan
The sun beat down on our necks and backs.
太阳直射在我们的脖子和背上。《21世纪大英汉词典》
The business elite and the military backs Pad, but the government enjoys widespread support among the poor, particularly in the countryside.
民盟由商界精英组成，有军方在背后撑腰；而政府则有广大穷人的支持，特别是在农村地区。 yeeyan
The backs of vertebrates evolved as a kind of horizontal pole under which guts were slung.
进化的脊椎动物的背部就像一个水平杆，内脏就悬挂在这水平杆上。 yeeyan
We were not two; we were one, the joints of our backs fused right near our sit bones.
我们不是两个，我们是一个，我们背上的连结融合在一起，就挨近我们的坐骨。 yeeyan
Yet the place is heaving with farmers waiting for their produce to be tested, carrying it in pails on trucks, on the backs of motorbikes or on their heads.
然而，这个地方聚集着等待自己的产品被检验的农夫们，牛奶放在桶里，桶放在卡车上，摩托车背上或顶在头上。 ecocn |