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(1)必(需)要(important reason for;necessity)[U，a～][N(for)，N+to-inf]：an urgent～for food 急需食物;satisfy/meet a～ 滿足需要;There's a～for caution in this matter. 在這件事情上需要小心謹(jǐn)慎。There is no～for panic. 不必驚慌。There is urgent～for a reform. 迫切需要改革。There was no immediate～for a decision on this troublesome issue. 不需要馬上對(duì)這一傷腦筋的問題作出決定。There is no～to send for the doctor. 不需要請(qǐng)醫(yī)生來。Is there any～to rush? 有必要匆忙嗎? There is no～for him to be so unpleasant. 他沒有必要這么不開心。Your～ is greater than mine. 你比我更需要。

(2)基本需求(thing that is thought to be essential for one to have)[pl]：basic/crying/emergency/everyday/the talent～s 基本/迫切/緊急/日常/人才的需要;Their first～s were food and water. 他們首先需要的是食物和水。What are your greatest～s? 你最需要的是什么?

(3)貧窮;困窘;危急(poverty or other difficulty)[U]：His～led him to crime. 貧窮使他犯罪。He's failed me in my time of～. 他在我困難的時(shí)候令我失望。Many of our citizens are in desperate～.我們的許多老百姓極度貧困?！纪絧overty，extremity，distress;〖反〗wealth，affluence;

if need be 必要時(shí);需要時(shí)：You mean that if～be you could earn your own living ? 你的意思是如有必要可以自己謀生嗎 ?

→′needful adj 必要的;′needfully adv 必要地;′needless adj 不需(必)要的。

【辨異】need和want都可指缺少必要的或渴望得到的東西。need 比want更強(qiáng)調(diào)必要性，如：Both of these bridges are badly needed. (這兩座橋都是急需的。) want 往往表達(dá)一種直接的，個(gè)人的欲望，如： She wants a bigger flat.(她想要一套大些的單元房)。need¹ 與must、should、ought to和have to 的區(qū)別見HAVE TO。