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TOEFL BNC: 3374 COCA: 3951
necessity
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noun /nəˈsesəti/
singularnecessity
pluralnecessities
  1. 1
    [U] a process, thing, or action that is needed in a situation 必要；必要性；需要
    necessity for :

    the necessity for a strong diplomatic effort 强大外交努力的必要性

    necessity of (doing) something :

    doubts about the necessity of the war 对战争必要性的怀疑

    necessity to do something :

    We both recognize the necessity to get this right. 我们俩都意识到做好这件事的必要性。

    out of necessity (=because it is necessary) 出于需要 :

    Women increasingly went out to work, usually out of economic necessity. 妇女外出工作越来越多，通常是出于经济上的需要。

     Synonyms and related words
    Important thing or detail: feature, priority, element...
    1. a.
      [C] [usually singular] something that is difficult or unpleasant but cannot be avoided 不得已的事；不可避免的事

      Raising taxes has become a necessity. 提高税金成了不可避免的事。

       Synonyms and related words
      Something that is difficult or unpleasant to do or deal with: task, burden, necessity...
  2. 2
    [C] something that you must have in order to live, work, or do something 必不可少之物；必需品

    basic necessities like milk and bread 诸如牛奶和面包等基本必需品

    A car is a necessity in this town. 汽车在这城里是必不可少之物。

    the bare necessities (=the basic things that everyone needs) 基本必需品 :

    They lacked even the bare necessities of life. 他们甚至缺少基本的生活必需品。

     Synonyms and related words
    Important thing or detail: feature, priority, element...
See also
TOEFL BNC: 3374 COCA: 3951
necessity

noun¹

 1fact that sth must happen; sth that cannot be avoided必然的事；不可避免的事ADJECTIVE | VERB + NECESSITY | NECESSITY + VERB | PREPOSITION | PHRASES ADJECTIVE➤absolute, fundamental, sheer, vital絕對必要；必不可少；完全必要◇Sleep is an absolute necessity for life.睡眠是生命中絕對必要的。➤dire, urgent緊急的／急迫的需要▸➤immediate即刻需要▸➤real真正必要➤perceived感知到的需要▸➤strategic戰略需要▸➤logical, physical, practical邏輯的必然；物理的必然；實用的必需品◇The people in the rural areas use mud bricks only as an immediate, practical necessity.農村人只是把泥磚作為一種便捷實用的必需品。➤business, economic, financial, historical, medical, military, political, social商務必需；經濟必需；財政必需；歷史必然；醫學必需；軍事必需；政治必需；社會必然◇He argued that nuclear weapons were a political necessity.他認為核武器在政治上是必需的。VERB + NECESSITY➤become成為必需◇A website has become a business necessity.網站已成為商業上的必需品。➤recognize, see, understand認識到／看到／理解必要性◇She saw the necessity to make an immediate impression on him.她意識到必須立刻給他留下印象。➤feel感到有必要◇I've never felt the necessity to rely on such a strict rule.我從不覺得非得遵循如此嚴格的規定。➤accept (sth as), be convinced of認可（⋯的）必要性；確信必要◇They have accepted the necessity of greater state intervention.他們已經認同國家進一步介入的必要。➤avoid, obviate, remove使不必要；免除必要性▸➤spare sb不一定非要某人（參與）不可◇Mrs R has been spared the necessity of having to give evidence.R 夫人獲准不是非要作證不可。➤emphasize, highlight, stress強調必要性；突出必要性◇Observers stressed the necessity for the ceasefire to be observed.觀察員強調必須遵守停火協議。➤be born of, be born out of出自⋯的必需◇Culling of the animals was born out of the necessity for successful conservation.宰殺動物中的弱者是保護自然的必要措施。➤be driven by受必要性驅使◇Driven by financial necessity, she decided to give up her writing career.由於經濟需要，她決定結束寫作生涯。NECESSITY + VERB➤arise必要性出現◇These animals don't like water but will swim if the necessity arises.這些動物不喜水，但必要時會游泳。➤dictate (sth), require (sth)必要性規定⋯／要求⋯◇This rule is carried no farther than necessity requires.這項規定僅限於在必要時施行。➤force sth必要性迫使⋯◇Necessity forced an urgent solution.有必要立即解決問題。PREPOSITION➤of necessity勢必◇The visit will, of necessity, be brief.訪問時間勢必會很短暫。➤out of necessity出於必要◇He is changing jobs out of necessity, not because he particularly wants to.他不得已才換工作，並非是自己特別願意。➤through necessity由於必要◇Most of the women are forced, through economic necessity, to work in part-time low-paid jobs.大多數婦女出於經濟原因才不得不做一些報酬低廉的兼職工作。➤without the necessity of沒有⋯的必要◇Most disputes can be resolved without the necessity of going to court.大多數爭端無需提到法庭上去就能解決。➤necessity for有必要⋯◇There's no necessity for you to come.你沒有必要來。➤necessity to做⋯的必要◇the necessity to earn a living謀生的需要PHRASES➤any necessity, no necessity有任何／沒有必要◇The company sees no necessity for a more cautious approach to investment.公司認為沒有必要採取更加謹慎的投資方式。
necessity

noun²

 2sth you must have必需的事物ADJECTIVE | VERB + NECESSITY | PHRASES ADJECTIVE➤absolute絕對的需要▸➤vital關鍵的必需品▸➤real真正的需要▸➤urgent緊急的需要◇Policies which address these issues are an urgent necessity.迫切需要的是解決這些問題的政策。➤bare, basic最起碼的需要；基本需要◇They have nothing but the barest necessities.除了最基本的必需品之外，他們一無所有。➤daily日常必需品VERB + NECESSITY➤have有必需的東西▸➤lack缺乏必需的東西PHRASES➤a necessity of life生活所需◇Food is a necessity of life.食物是維持生命所必需的。
TOEFL BNC: 3374 COCA: 3951
necessity noun
⇨ certainty (Living in London was an unfortunate necessity.) ⇨ need (basic necessities)

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