| 释义 |
pre·cur·sor 英prɪˈkɜːsə, ˈpriːˌkɜːsə美prɪˈkɝsɚ, ˈpriˌkɝsɚAHDprĭ-kûrʹsər, prēʹkûr'sər ★☆☆☆☆高四ＧＩＭＳＴ宝COCA¹³⁹³³BNC¹⁶¹²⁴iWeb¹⁰³⁷⁹Economist¹²²⁴⁵
基本英英词源搭配记法近义反义例句Thesaurus例句
n.先驱³⁹;前任⁵;前兆⁵⁶;生物前体，前驱体复数precursors
人人物先驱者年老童叟预预测预知
Noun:
a substance from which another substance is formed especially by a metabolic reactiona person who goes before or announces the coming of anothersomething that precedes and indicates the approach of something or someone词根词缀： pre-前,先 + -curs-流,跑 + -or人cartilaginous precursor前软骨precursor fault初始断层vitamin precursor维生素原precursor cell前体细胞precursor relation前身关系specific precursor特异性前体precursor substance产物母体,先质,前身…enzyme precursor酶的前体milk precursor乳前体物angiotonin precursor医 血管紧张素前…earthquake precursor地震先兆现象…precursor chain前身链
钱博士pre在前面+curs奔跑+or者→在前面奔跑的人⇒先驱，先导
词根curr-奔跑来自拉丁语，和拉丁词根carr-车同源，常见变体形式cur-。它的过去分词形式为curs-，后面的s是过去分词后缀t的音变。GRE红宝书pre前, curs跑, or－在前面跑的人－先驱
pre + cursor 跑，跑在前面的人
pre前面+curs跑+ or→跑在前面的人→ 先驱方振宇词汇奥秘pre先，前+curs跑→行+or者→先行者，前任，前辈
比较记忆precursoryadj.先驱的，作预备的，前兆的GRE难词记忆precursor→pre=beofore 在前面+curs=torun+or→跑在前面的人→先驱pre在前面+curs奔跑+or者→在前面奔跑的人⇒先驱，先导。词根记忆pre前+ curs跑+ or → 跑在前面的人 ⇒先驱词根记忆pre前+curs跑+or表人→跑在前面的人→先驱词根记忆pre+curs+or=先跑者=先驱近义词 sign手势herald使者parent父母leader领袖pioneer先锋ancestor祖宗foretaste预示harbinger先驱antecedent前情forerunner先驱original原始的foundation根基predecessor祖先originator创始人
名词100%
用作名词Theprecursorof the modern car was a horseless carriage with a petrol engine.现代汽车的前身是不用马拉的，装有汽油发动机的车子。
Herprecursoras school principal was an eminent educator.她任校长前是一位卓越的教育家。
Opposition by colonists to unfair taxation by the British was aprecursorof the Revolution.殖民地居民对英国不公正税收的反抗预示着革命的到来。
Lysine is aprecursorof certain alkaloids.赖氨酸是某些生物碱的前体。noun.something that indicates outcome or event beforehand
同义词 forerunner,harbingerherald,messenger,outrider,usher,vanguardnoun.something that precedes another
同义词 forerunner,prototypeancestor,antecedent,forebear,original,originator,parent,pioneer,predecessorantecessor,foregoer
ancestornoun predecessor in family
antecedent,antecessor,ascendant,forebear,forefather,foregoer,foremother,forerunner,founder,primogenitor,progenitor
ancestrynoun family predecessors;family history
ancestor,antecedent,antecessor,blood,breed,breeding,derivation,descent,extraction,forebear,forefather,foregoer,foremother,forerunner,genealogy,heritage,house,kindred,line,lineage,origin,parentage,pedigree,precursor,primogenitor,progenitor,race,source,stock
augurynoun omen
auspice,boding,forerunner,foretoken,forewarning,harbinger,herald,portent,precursor,presage,prognostication,promise,prophecy,sign,token,warning
forebearernoun family predecessor
ancestor,antecedent,ascendant,author,begetter,forerunner,founder,materfamilias,matriarch,originator,parent,paterfamilias,patriarch,precursor,primogenitor,procreator,progenitor,relative,sire
forefathernoun ancestor
antecedents,ascendant,forebearer,patriarch,precursor,predecessor,primogenitor,procreator,progenitor
forefathersnoun ancestor
antecedents,ascendants,forebearers,patriarchs,precursors,predecessors,primogenitors,procreators,progenitors In fact, the new yeast strain simultaneously converts cellobiosea precursor of glucose and xylose to ethanol just as quickly as it can ferment either sugar alone.
这种新酵母可以同时将葡萄糖的前身纤维二糖和木糖转化为乙醇，其速度与单独发酵任一糖类一样快。 yeeyan
In low-lying areas, people will watch the steady retreat of Arctic ice, a precursor to rising sea levels, with increasing apprehension.
北极冰层的持续融化是海平面上升的前兆，低洼地区的人们对此将越来越担忧，并密切关注着。 ecocn.org
The concept of under-utilized resources, together with the rise of J2EE platform, gave rise to the precursor of cloud computing: application server virtualization.
但是，对这些资源的低估及 J2EE平台的迅速发展，成为了云计算诞生的前兆：应用程序服务器虚拟化。 yeeyan
The interference of the precursor and the slightly delayed main waveform can explain this structure.
前驱的干扰和主波形轻微的延迟可以解释这个结构。 yeeyan
The models may be developed as a precursor to implementing the physical system, or they may be derived from an existing system or a system in development as an aid to understanding its behavior.
模型也可以作为实现物理系统的先驱被开发，或者模型可以根据一个已存在的系统或者开发中的系统被产生作为理解系统行为的帮助手段。 ibm
As such, this question is as old as SGML, the precursor of XML, and has been hotly debated with no universally accepted consensus.
这个问题像 XML的先驱 SGML一样古老，而且曾经历过热烈的辩论，只是最后也没有广泛地达成一致。 ibm
At the moment, as Du explained, optical precursor communication is limited by current technology, so it is not yet practical.
同时，正如杜博士解释的那样，现有的技术限制光前驱通讯的发展，所以它还没有应用于实践。 yeeyan
But when crushed and combined with a witches’ brew of other chemicals, including lithium, liquid fuel and ammonia, it is the precursor to the illegal drug methamphetamine, or meth.
但是当被粉碎并与一组神奇配方包括氢化铝锂、燃油和氨水混合后，它便成了非法药物脱氧麻黄碱或冰毒的前体。 ecocn
Error is often the precursor of what is correct.
错误常常是正确的先导。《新英汉大辞典》
From this he extracts precursor cells that can go on to form the muscle on the outside of the bladder and the specialised cells within it.
从这样本里，他会萃取一些前驱细胞，这些细胞会进而形成膀胱的外壁肌肉，以及膀胱内分工化的细胞。 ecocn
He persisted in his strategy of disabling Russia’s ally as a necessary precursor to the final showdown with Peter, which he was still confident of winning.
他仍然坚持自己以打败俄国的盟友作为最终打倒彼得的必要先导的策略，此时他仍然对最终的胜利抱有信心。 yeeyan |