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单词 at
释义 at.
基本双解英英辨析词源搭配记法近义反义句型用法例句Thesaurus例句
airtight; abbr⁵⁰.;=ampere-turn⁵⁰

prep.介词
表示位置在,于; 到达,达到; 经,由; 在…旁,靠近; 在…里; 在…上; 在…方位

a word that shows where; to; past, by; beside; in; on

表示时间在,在…时刻〔时辰,期间,阶段,时节〕; 在…岁时

a word that shows when; during

表示状态处于…状态,在…情况下

a word that shows state

表示方式以…的方式; 通过一次…的动作

a word that shows means

表示原因因为,由于; 由于有,由于应

… because of sth

表示距离从,在距离…处

a word that shows distance in space or time

表示目标朝,向,对着

towards sb/sth

表示环境出席,参加

a word that shows situation

表示方向在…方面

a word that shows how well sb/sth does sth

表示比率以…价格; 以…速度; 以…比率

a word that shows how much, how fast, etc.

表示过程从事于; 正处于做…的过程中

a word that shows what sb is doing or what is happening

表示伴随一…就

a word that shows accordance


Noun:
a highly unstable radioactive element the heaviest of the halogen series; a decay product of uranium and thorium100 at equal 1 kip in Laos
prep.介词
at, in, on

1.at,in和on都可表示时间。at通常指确切的某个时刻,如at six o'clock; in通常表示一天的某一部分,如in the morning〔evening,afternoon〕; on则具体说明哪一天的上午或下午,如on Monday morning,on a summer's day。在谈论节日时,at通常指整个的节〔假〕日,不只指一天,如at Easter 在复活节,at Christmas 在圣诞节; on可具体指节日的某一天,如on Easter Monday 在复活节后的星期一,on Christmas Day 在圣诞节那天。在谈论月份、季节、年份或世纪时,通常用介词in,如in the eighteenth century 在18世纪,in summer 在夏天,in March 在三月,in 1985 在1985年。

2.at,in和on都可表示地方、位置。at多用于指空间某一点; in用来指有大小、体积和幅度的一个地方或位置。

3.at the weekend 在周末英国用法; on the weekend 在周末美国用法。

at, after, by, for, from, over, through, with

这组词都可表示原因。其区别在于:

1.after是由其指时间的本意引申而来,含有明显的因果关系,可译为“经过…之后所以”; by是由其指方法、手段的本意引申而来,意思是“通过…手段〔途径〕而产生某种结果”; through是由其指媒介的本意引申而来,常指偶然或意外的原因,强调其不利或消极的因素; from是由其指起源、根源或由来的本意引申而来,可以是事物发生的原因,也可以是行为产生的动机; at一般指看到、听到或感觉到客观事物而产生某种感情、情绪、态度或行为的原因; for一般指由于客观原因如举止、言语等而导致某种结果; over常指造成某种情感的客观事物或原因; with是从其表示手段的含意引申而来的,指由于外界刺激而造成的精神上的或身体上的某种状况。

2.through后常接抽象名词; at常与angry, annoyed, astonished, mad, sad, shocked, marvel, wonder等形容词或动词搭配; for常与famous, well-known, admire, apologize, blame, punish, thank等形容词或动词搭配; over往往与cry, grieve, laugh等表示情绪的动词连用; with常常与表示感情的形容词如affected, angry, excited, fatigued, pleased, tired等、生理状况的形容词如blind, ill, mad, numb等和颜色的形容词如blue, grey, green, livid, red等或是表示身体运动的动词如burst, shiver, shudder, tremble等搭配。

3.在英式英语中,引起感情、心理刺激的如果是人或物,通常用with; 如果是言行或事件,则通常用at。

at, beside

这两个词都有“在…旁边”的意思。其区别在于:at表示有目的的接近; beside表示偶然的靠近。

at, by

这两个词都可表示“按照”“根据”“依照”“依从”。其区别在于:

1.at多接抽象名词; 而by多接具体名词。

2.这两个词都有“按…计算”的意思,不过by用于英式英语; at用于美式英语。

at, to

这两者均可表示方向, to一般是善意的; at含有寻衅的意味,往往是恶意的。例如:

The boy throws a bone to the dog.

那小孩扔了一块骨头给狗。善意

The boy throws a bone at the dog.

那小孩把一块骨头扔到狗身上。恶意

at,in,on

这些前置词在表示地点或时间时均含“在……”之意。

at表地点时,指空间位置上的某一点;表时间时,指在时间上的某一时刻。

in表地点时,指在某一立体空间范围内;表时间时,指一段时间或与年、月、季节时间连用。

on表地点时,指某物与另一物表面相接触,或与某地方接壤等;表时间时,指在某一天或某一天的某个时间,尤指在星期几。

来自PIE *ad, 向,同前缀ad-.
用作介词 prep.
动词+~arrive at到达assist at参与bark at the moon空嚷bay at the moon不断无谓地抱怨be at sb's door责任等归于某人;某事是某人的责任be left at the post从一开始就被远远地抛在后头beat at the post在最后一刻被击败beat sb at his own game将计就计地战胜某人begin at从…开始bite one's thumb at对…咬大拇指表示侮辱或蔑视break apart at the seams破裂,失败,崩溃burn the candle at both ends滥耗精力或资财burst at the seams胀破裂缝,过满,过于拥挤call at到…作短暂访问;车、船等停靠cast a stone at攻击,指责cast sheep's eyes at对某人做媚眼,笨拙地向…讨好cast stones at攻击,指责catch at试图抓住,拼命抓住;急切地去取;很快地接受catch at a straw落水者捞救命稻草,为求脱离困境等作最后的绝望挣扎catch at shadows捕风捉影catch at the rebound在…失恋或失望时乘虚而入chafe at the bit烦躁不安地急欲挣脱束缚champ at the bit烦躁不安地急欲挣脱束缚chomp at the bit烦躁不安地急欲挣脱束缚clutch at a straw落水者捞救命稻草,为求脱离困境等作最后的绝望挣扎cock a snook at对…做侮辱性的〔轻蔑的〕手势come at拿到,发现;追击;了解到,弄清come apart at the seams破裂,失败,崩溃cut at朝…猛砍或猛击等cut a snook at对…做侮辱性的〔轻蔑的〕手势dig at挖苦drive at孜孜不倦地干eat at烦扰,困扰fall at the seams破裂,失败,崩溃fling dirt at中伤,诽谤fly at扑向;猛烈攻击fly at sb's throat扑向某人去掐脖子,突然向某人发起猛烈攻击foam at the mouth口吐白沫;大怒;气得口沫横飞get at伤害,贿赂go at攻击某人;以…价格出售grab at a straw落水者捞救命稻草,为求脱离困境等作最后的绝望挣扎grasp at a straw落水者捞救命稻草,为求脱离困境等作最后的绝望挣扎guess at猜想hammer at锤击have a bash at试着做have a fling at尝试,试做have a shot at尝试,试着做或赶、夺等;嘲笑,使恼怒have a shy at嘲弄;试图击中;试图获得have a smack at试做have a stab at试图做,尝试have a whack at照着…猛击一下;尝试have sb at one's beck and call随心所欲地使唤某人have sb at one's mercy使某人任凭自己摆布have sth at heart对某事极为关心have sth at one's finger tips对某事了如指掌,可以很容易地做某事have at着手对付,攻击,打击hawk at如鹰一般扑击,向…扑过去jib at面对…畏缩不前jump at跃向;急切地接受,欣然接受keep at使继续做,使坚持干keep at a distance对…冷淡;同…疏远;与…保持一定距离kick at向…踢去laugh at对…笑;因…而笑;嘲笑;对…一笑置之;蔑视lay at one's door归咎于leap at扑向,跃向;赶紧抓住机会,迫不及待地接受let drive at朝…打;对…发射let it go at that不去多操心;不再多说lie at anchor停泊look at看,注视look daggers at对…怒目而视look down one's nose at不把…放在眼里look at the world through rose-coloured glasses乐观地看待一切事物look at through rose-coloured spectacles对…持乐观态度make at袭击make a face at对…做鬼脸make a long nose at对…做鬼脸即把拇指顶在鼻尖上,张开并摇动其余四指表示轻蔑的动作make a shy at嘲弄;试图击中;试图获得make a snook at对…做侮辱性的〔轻蔑的〕手势make a stab at试图做,尝试make eyes at含情脉脉地看;向…送秋波make faces at对…做鬼脸make sheep's eyes at对某人做媚眼,笨拙地向…讨好nip at一点一点地咬;慢慢侵袭;挑剔,找…的岔子nothing to sneeze at不可轻视,不得小看not much to look at样子不怎么好看的,相貌平常的peck at鸟、鸡等啄食;不断敲打;勉强小口地吃pick at扯拉,抓弄;无食欲地吃,无兴趣地干某事pip at the post在最后一刻击败play at玩,做游戏等;参加体育活动,比赛等;戏弄,嘲弄,儿戏似地做play at soldiers儿童玩打仗游戏play sb at his own game将计就计地战胜某人point one's finger at轻蔑地指责point the finger at轻蔑地指责poke fun at开…的玩笑,嘲弄pull at用力拉或拖、扯等到;从…中喝酒等,从…中抽烟;对…产生影响,感染put sb's mind at rest使某人放心,使某人安心run at向…冲击,突然袭击see at怂恿…袭击seize at a straw落水者捞救命稻草,为求脱离困境等作最后的绝望挣扎set one's cap at女子追求男子,女子向男子挑逗set sb's mind at rest使某人放心,使某人安心set at naught蔑视,轻视,一笔抹杀set at nothing使不成功,使落空shake a finger at用食指指点,手指指着…以示责备;指出shake a stick at关心,注意shake one's finger at用食指指点,手指指着…以示责备;指出shoot at向…袭击;试图达到〔完成〕,以…为目标,为…而努力shoot at shadows捕风捉影shudder at对…感到惊恐〔恐惧〕sit at sb's feet受教于某人,崇拜某人sit at the stern掌权,管理政事sling dirt at中伤,诽谤snap at猛咬,猛扑snatch at a straw落水者捞救命稻草,为求脱离困境等作最后的绝望挣扎sneeze at轻视,看轻snip at在…上剪snipe at对…射击start at the bottom of the ladder从最低级做起,始于卑微stick at停止做,对…却步,对…犹豫;继续努力做,坚持干stick at trifles拘泥于小节stop at nothing不顾一切,不择手段strain at用力拉或推,往…使劲;难以接受strain at the leash急于摆脱束缚,急于开始strike at打击,攻击;企图损害〔破坏〕strike at the roots摧毁…的基础,根除surrender at discretion无条件地投降swear at咒骂,诅咒;颜色等与…不协调take a fling at尝试,试做take a look at瞧,看,注视,留意take a poke at打…一拳take a shot at尝试,试着做或赶、夺等;嘲笑,使恼怒take a shy at嘲弄take a sight at以拇指顶着鼻尖张摇其余四指对…表示嘲笑take a stab at试图做,尝试take a whack at照着…猛击一下;尝试take offence at对…生气,因…见怪take sb at a disadvantage乘隙攻击;利用某人的不利因素take sb at advantage乘某人不备,使某人措手不及take sb at his word相信某人说的是真话take at the rebound在…失恋或失望时乘虚而入talk at影射,不指名地批评,对…大发议论throw a stone at攻击,指责throw dirt at中伤,诽谤throw mud at诽谤,中伤throw oneself at sb's feet拜倒在某人脚下;崇拜某人throw stones at攻击,指责throw the book of rules at一股脑儿往…身上加罪名;从严惩罚;狠狠责备thumb one's nose at对…嗤之以鼻,蔑视tilt at windmills同假想的敌人或坏事战斗try at试着做turn up one's nose at不把…放在眼里,蔑视turn up the nose at不把…放在眼里,蔑视wag a finger at用食指指点,手指指着…以示责备;指出wag one's finger at用食指指点,手指指着…以示责备;指出wait at table伺候进餐,在餐厅wink at向…使眼色wish sb at the devil巴不得某人离得远远的work at在…工作;在…任职;从事于,致力于动词+副词+~chip away at从…抽去实质性的东西;削弱;损害come back at有力的回答fly off at a tangent突然离开原来的思路,突然离题get back at向…进行报复get on at不断地指责go off at a tangent突然离开原来的思路,突然离题go off at half cock过早行事或发表意见go off at score赛跑时全速起跑,精神抖擞地出发;突然很起劲地讲起来go on at总是责备,缠着hammer away at不懈地致力于keep on at对…纠缠不休;不断催促,不停地困扰;对…责骂不休;不迁离某处;继续雇用某人run off at the mouth滔滔不绝地谈论,胡吹,随便乱说set off at score赛跑时全速起跑,精神抖擞地出发;突然很起劲地讲起来stop short at在…突然刹车或住手;险些…work out at总共达~+名词skeleton at the feast宴席上的骷髅;扫兴的家伙〔事物〕asleep at the switch玩忽职守;坐失良机at a blow一击之下;一举,一下子;突然at a clinic在诊所at a college在大学at a conference在会议上at a dash迅速而洒脱地at a disadvantage处于不利的地位at a discount低于正常价格地,打折扣;股票值低于票面价值;无销路的,不值钱的at a distance有相当距离at a fast pace以快速度at a gallop以最快速度,飞快地,急速地at a guess凭猜测at all丝毫,一点;根本;究竟;从任何方面考虑at all costs不惜任何代价,无论如何at all events不管怎样;无论如何at all hazards不顾一切危险地at all hours在任何时候,始终不间断地at all points在各部分,在各方面;完全地at all rates无论如何,至少at all times随时,总是at a loose end没有安定职业的;对未来没有明确计划的;闲着的;未解决的;混乱的at a loss困惑不解at a low ebb处于低潮;处于衰退状态at a minute's notice提前一分钟at a moment's notice提前一会儿at anchor抛着锚;停泊着at an easy rate廉价的,很容易的,不费力的at an end结束at any cost不惜任何代价,无论如何at any minute随时,在任何时刻at any moment时时刻刻at any price不惜任何代价at any rate无论如何,不管怎么说,至少at any time在任何时候,随时at a pinch必要时,在紧要关头at a premium以超过一般的价格〔价值〕;非常稀罕的,奇缺的at a price以很高代价at a profit以获利的结果at a push一推之下,一按之下;在紧急时;不得已时;困难地at a rate of knots极快,迅速地at arm's length以一臂之远;在伸手可及之处;相当疏远地;保持一定距离地;交易双方均不受对方控制地at a rush急速地,赶紧地at a sale在大拍卖中at a single blow一击之下;一举,一下子;突然at a standstill处于停顿状态at a stand停住,停止,停顿;茫然不知所措at a stretch不停地,一口气地;在尽量利用设备或资源等情况下at a stroke一下子,一举at a sweep一下子,一举at a〔the〕 run奔跑着at a time每次,一次at a touch一触就at a venture碰巧,随便地,未经考虑地at a whack一下子,一口气at a word对请求、建议等反应迅速的at base本质上at bay猎物等被围;处于走投无路的境地at close hand近处,就在附近at close quarters接近地;短兵相接地at cost按成本〔成本价格〕at cross-purposes相互误解;相互矛盾at daggers drawn剑拔弩张,势不两立at daybreak黎明时at death's door行将就木at discretion随意,任意at each other's throats激烈争吵,吵架,打架,斗殴at ease无忧无虑at every moment时时刻刻,不停地at every opportunity利用一切机会at every pore极度;非常at every turn每次,事事,处处at fault猎犬失去嗅迹;感到困惑,不知所措;出毛病;有责任at first appearance初看起来,乍一看at first sight乍一看,一见之下,立即at first thought乍一想at full capacity以最大的产量;最大限度地at full length全身伸展地;详尽地,无删节地at full pelt全速地,开足马力地,尽快地at full speed尽快地,以最快速度,拼命地at full split以极高的速度,拼命地at full strain全力以赴,竭尽全力at full strength全到场的地,以全员,以满员at full stretch尽量伸出手臂;全力地,极其紧张地at full throttle油门大开地,以全速at full tilt全速地,全力地at grass被放牧在草场上的;闲着,休假中,不工作的at great expense花了很多钱;以很大的代价at great length详尽地;长久地at grips with在与…搏斗;在认真对付或处理at gunpoint在枪口威胁下at hand近在手边,在附近;供使用;即将来到,即将发生;被考虑中at hazard在危险中,存亡攸关;随意地at heart内心里;本质上;实际上at heel紧紧在后at high tilt全速地,全力地at issue在争论中,不一致at it忙个不停at knife point在刀子的威胁下at law根据法律,通过法律手段at leisure有空的;不忙碌的;从容地;慢慢地;失业的at length最终,终于;详尽地;长久地;啰唆地at liberty自由的,不受监禁的;获许可的,有权的;有空闲的,不占用的;失业的at little expense花了很少钱;以很小的代价at logger-heads不和,相争at moments时时,不时at night在晚上,在夜里at nights夜里经常地at no period从未有过at no time在任何时候都不,从来没有at nurse小孩由别人带的;房产等交人照看的at odds不和,争吵at one一致at one another's throats激烈争吵,吵架,打架,斗殴at one blow一击之下;一举,一下子;突然at one fling一气呵成地,一鼓作气地at one jump一下子at one moment一度at one point在某一时刻at one's best处于最佳状态;在全盛时期at one's command可自由使用或支配at one's fingertips近在手边;随时可供应;立即可以得到;精通,熟悉at one's last gasp临终,于奄奄一息时;在最后时刻;筋疲力尽的at one's leisure在空闲时,在方便时at one's mother' s knee在母亲膝下;在孩提时期at one's own pace以轻松自在的速度at one's own sweet will全凭自己的意愿,随心所欲地at one's peril自担风险at one's pleasure随便,随意at one's〔sb's〕 elbow在某人手边,在某人近旁at one's strongest在最强的状态下at one's time of life在这个年纪at one's tongue's end在嘴边at one's tricks作弄人at one stroke一下子,一举at one sweep一下子,一举at one's wit's end智穷计尽,全然不知所措at one time曾经有一个时期,一度;同时at one time and another在不同的时期,在不同的场合at one time with another在不同的时期,在不同的场合at one whack一下子,一口气at other times在别的时候;平时at pains尽力,费尽苦心,努力at par照票面价,与票面价值相等的at peace处于和睦或和平状态;处于平静状态at present现在,目前at present writing在写本文〔本书〕时at quiet平静的地,安静的地at rest休息之中;处于安息状态;处于停止状态at risk处境危险,遭受危险at roost栖着,歇着;在睡觉at sb's back作某人的后盾,给某人撑腰;紧紧在某人之后at sb's behest按照某人的命令,应某人的请求或邀请at sb's command服从某人,听某人吩咐at sb's disposal任某人处理;供某人使用;由某人支配at sb's doorstep在某人的近旁;在某人的利益〔职责,能力〕范围之内at sb's expense由某人付钱,由某人负担费用;在使某人受损害的情况下at sb's feet在…支配下,作为…的门徒或臣民等at sb's neck想卡住人的脖子,要某人的命at sb's pleasure随某人之便,按某人之意at sb's request应某人的要求或请求at sb's service听某人吩咐;任凭某人使用at school在学校;在上课;在求学at sea在海上航行;茫然,困惑at short notice提前很短时间at sight一见就;一经要求就;一出示就at source在源头,在始发地at speed高速地,迅速地at stake在危急关头,在危险中at stud公畜供配种用at sword's points在剑拔弩张之时at table在进餐,进餐时,席间at term到期终时,到期at that就那样,就这样,到此为止;此外,而且;毕竟at that point in time那时at that rate照那种情形,既然那样at that time在那时at the back of作…的后盾,给…撑腰;作为…背后的原因at the back of sb's mind在某人的脑海深处at the beck and call of唯…之命是从,听凭…调遣at the best of times即使在最好的情况下at the bottom基本上,实质上;在心底at the bottom of是…真正的起因或根源at the bottom of one's heart在某人内心深处at the cost of以…为代价at the crossroads处在抉择的紧要关头at the discretion of随…的意见办理,由…斟酌决定at the double迅速地,尽快地,立即;以跑步方式at the drop of一听到或看到…就…at the drop of a hat立即,毫不迟疑地;乐意地at the earliest opportunity一有机会at the end最终,终了时at the end of the rainbow在可望而不可即的地方at the expense of由…负担费用;以…为代价at the feet of在…支配下,作为…的门徒或臣民等at the first blush乍一看,根据初步印象;经初步考虑at the first glance乍看上去,乍一看;最初看到时;最初考虑时at the first go-off一开始at the first jump一开始at the first opportunity一有机会at the fore信号旗悬在前桅上;在前面at the full月在最圆时;完整地,完全地;充分地at the hands of从…那里;由于…的作用at the heels of紧紧地跟在…后面at the instigation of受…的唆使;在…煽动之下at the kill战争、比赛结束时在场;不幸的事发生时在场at the last gasp临终,于奄奄一息时;在最后时刻;筋疲力尽的at the last minute在最后一刻,在紧要关头at the last moment在最后一刻at the mercy of任凭…的摆布at the moment此刻,目前;那时,当时at the news of一得到…消息at the news that一得到…消息at the parting of the ways在岔口路上,在十字路口;在需要作出重大抉择的时刻,在关键时刻;在分别时,在分道扬镳时at the point of正要…之际,就要…之时at the point of a〔the〕 gun在武力威逼下at the press印刷中的at the rate of knots极迅速地,飞快地at the root实际上,本质上at the same time同时;然而,不过at the sight of一看见at the slope士兵扛着枪,枪被扛着at the start开始时,一开始at the stroke准时地,准点地at the stroke of a pen大笔一挥at the tail of跟随…之后,尾随着at the thought of一想起…就at the time when在…那时,当…那个时候at the tips of sb's fingers就在某人手头的,某人随时可用的at the top of one's lungs用尽量大的声音at the top of the tree在同行中高居首位at the wheel在驾驶,在操舵;控制,掌管at this接着就,随即at this juncture在这个当口at this moment in time此时此刻at this point in time此时,现在at this rate照这种情形,既然如此at this time在此时at this time of the day在一天中的这个时候如清晨、深夜等;在这个阶段如历史、文化、谈判等的后阶段at this writing在写本文〔本书〕时at times有时,间或at top speed尽快地,以最快速度,拼命地at twice分两次地;第二次at variance事物之间不一致,不相符合at volley不经意地,顺便地;球未落地凌空时at war with同…处于作战状态,同…不和,同…进行竞争at wholesale用批发方式at will任意,随意at work在工作,在干活,在劳动;在工作地点,在工作场所,在办公室;在运转,在起作用at wrong end在错的一头;不对头at your convenience在你方便的时候,以你认为合适的方式at your earliest convenience在你方便时尽早be at a deadlock处于或陷入僵局be at action stations准备行动,严阵以待be at the end of one's rope山穷水尽;智穷力竭be at the end of one's tether山穷水尽;智穷力竭be at the races妓女街头卖笑be at the receiving end成为接收方;成为承受或被害者一方be in at the death打猎时目睹猎物被猎狗咬死;看到事情的结局be in at the finish最后猎获猎物时亲自在场;在比赛的最后阶段亲自在场down at the heel鞋子鞋跟磨掉的;人穿鞋跟磨破的鞋的;衣衫褴褛的;邋遢的ill at ease局促不安,不自在leave it at that就到此为止,别再说什么或做什么light at the end of the tunnel历尽艰辛之后终于看到的成功之光;久病之后终于出现的康复可能near at hand邻近,在近旁;在不久的将来out at heel鞋跟穿破的;袜跟有洞的;衣衫褴褛的;邋遢的out at the elbows衣衫露肘的,破旧的;衣衫褴褛的out at the heels鞋跟穿破的;袜跟有洞的;衣衫褴褛的;邋遢的the man at the wheel驾驶员,舵手;掌管者,负责人副词+~back at square one回到起点be in at在场be on at唠叨,不停地催促〔责怪〕hard at it努力工作~+副词all at once突然,忽然;同时,一起at home在家;在国内;无拘束;会客at once立即,立刻,同时,既…又…at once…and…既…又…at random胡乱地,随便地,任意地~+形容词at earliest最早at full月亮在最圆时;完整地,完全地at large罪犯、野兽等未被捕获的,不受约束的;不具体的;没有固定职业的;普遍的,一般的at last终于at long last终于;经过很多苦恼或麻烦之后at normal正常的地at the best就最乐观的一方面看;至多,充其量at the farthest最远也不过…;最迟也不过…;至多at the first起先,开始时at the furthest最远;最迟;至多at the latest至迟,最晚at the least至少;无论如何;不管怎样;反正at the longest至多;最长at the lowest至少;最低at the most至多,不超过at the very most至多,充其量不超过at the very outside最多,充其量at the worst最不利的一面;在最坏的情况下~+数词at sixes and sevens乱七八糟;不和
小学英语速记联想记忆:我在at12点钟的时候戴上帽子hat近义词 by靠近about关于in在 … 里on在 … 之上next to邻近astatine化砹by the side of在 … 附近
用作介词prep.He was not at his office.他不在办公室。
He arrived at a little village last night.他昨天夜里到达一个小村庄。
He was standing at the door.他正站在门边。
There was a symphony concert at the music hall.音乐厅里有一个交响乐音乐会。
I sat at the back of the room.我坐在房间后面。
The meeting will open at 15:00.会议在下午三点钟开始。
Someone will knock on your door at midnight tonight.今晚午夜时分会有人敲你的门。
At the beginning of June an event occurred.六月初发生了一件事。
Staying up late will do you harm at your age.在你这样的年纪熬夜有害健康。
The children used to send me a card at Christmas.孩子们过去常常寄圣诞卡给我。
The soldiers are standing atattention.士兵们立正站着。
The roof is at a right angle to the walls.房顶和墙壁成直角。
I was there at a bound.我纵身一跃就到了那里。
He covered the distance to his house at a run.他一口气跑完了通往他家的路程。
We were frightened at the terrible sight.看到这可怕的景象,我们被吓呆了。
An extra book may be borrowed at the discretion of the librarian.图书管理员可以斟酌决定是否可以额外借阅一本书。
At the suggestion of our parents, we deferred the visit to the museum until the following day.根据我们父母的建议,我们将参观博物馆一事推迟到第二天。
I saw it at a distance.我从远处看见了它。
They opened fire at a range of 200 yards.他们在200码的射程处开火。
Somebody is knocking at the door.有人在敲门。
He threw the key at me.他把钥匙丢给了我。
I remember him at a banquet on that night.我记得那天晚上他参加了一个宴会。
She is good at describing things or expressing ideas.她善于描述事物或表达思想。
What do five books cost at two dollars a book?两美元一本的书,五本价钱是多少?
He is driving at the rate of seventy miles an hour.他正以每小时70英里的速度行驶。
The ship was going at full speed when it hit the rock.该船在全速行驶时触礁。
I must go and see what those children are at.我得去看看那些孩子们在干什么。
They were at their meal.他们正在吃饭。
At the sight of her appearance on the stage, the hall rang with thunderous applause.一看见她出现在舞台上,大厅里就掌声雷动。
They were gloomy at the thought of what they had to face.他们一想到不得不面对的事实就感到沮丧。

in与at的比较:用于地方时,at指较小的地方,如指城镇时,in指较大的地方,用于省、国家、大陆前。国际大都市前用at 和in都有,但在London前通常用in。在指说话人的住处时要用in,且一般in表示实在的存在,而at却不是。说到某大城市的某大建筑物,往往在大城市名称的前面用at,如the Pantheon at Rome。说到商店、机关、学校等,假使看作一个地点point)用at。假使看作一个场所place用in,the barber's 理发店,Green's (Green所开的店)等前面只用at,不用in。说到门牌用at,如live at 1184 Zhongshan Road,路名前面该用in,而说“在……路口”用at;

用于时间时,可表示时刻,如at night,at three o'clock,at dawn,at any time等。也可表示较短的时期,如at night,at the beginning of the month等,其中at night表示时刻时意为“在薄暮”,表示较短的时期时意为在夜里,通常指黄昏或上半夜;

at用于信封地址前可指“转交”。

Mike at 99 Zhongshan Road Shanghai.Mike经常不在上海中山路99号,请予以转交。

at用于一些动词后面表示某种情绪、非语言交流或攻击性行为,如smile at me,point at me,shout at you等;

arrive后面一般都接in或at,而不接to,如When did you arrive in New Zealand?而不是to New Zealand;

at five years old和at five miles distant里用at,可改作at five years of age或at the age of five years和at five miles' distance,这种用法较为普遍。


介词99%,名词1%
用作介词I'm sorry to obtrude on youatsuch a time.我很抱歉在这个时候打扰你。
She had her hair styledatthe beauty parlor.她的头发是在美容院做的。
Snipers shotatthe invaders from the roof tops.狙击手从房顶上向侵略者射击。
She makes eyesatthe handsome young man.她向那位英俊的小伙子送秋波。
The airplane fliesat900 kilometers an hour.飞机以每小时900公里的速度飞行。prep.(about;in the direction of
同义词 appearing in,by,found in,in the vicinity of,near to,on,placed at,situated at,through,toward
alongadverb near
adjacent,by
melancholicadjective depressed
at,bad,bleeding,blue,bummed out,cast down,crestfallen,crummy,dejected,desolate,despondent,destroyed,disconsolate,dispirited,down,down and out,down in the dumps,down in the mouth,downcast,downhearted,dragged,dull,dysphoric,fed up,gloomy,glum,grim,heavy-hearted,hurting,in a blue funk,in pain,in the dumps,in the pits,in the toilet,let down,low,low-down,low-spirited,lugubrious,melancholy,moody,morose,on a downer,pessimistic,ripped,sad,sob story,spiritless,taken down,torn-up,tristful,unhappy,weeping,wistful,woebegone
onadverb in contact;ahead of
about,above,adjacent,against,approaching,at,beside,close to,covering,forth,forward,held,leaning on,near,next,on top of,onward,over,resting on,situated on,supported,touching,toward,upon,with
whenconjunction though
albeit,although,at,at the same time,during,howbeit,immediately upon,just after,just as,meanwhile,much as,whereas,while Let them do it at once.
让他们马上做这件事。《21世纪大英汉词典》
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英汉汉英双解词典包含9999994条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。

 

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