necessity

英 [nə'sesəti] 美 [nə'sesəti]

• n. 需要；必需品；必然

双解释义

n. (名词)

1. [U]必要(性); (迫切)需要

   circumstances that force one to do sth; state of being necessary

2. [C]必需品

   necessary thing

3. [S]自然规律

   natural law that is seen as governing human action

英英释义

Noun:

1. the condition of being essential or indispensable

2. anything indispensable;

   "food and shelter are necessities of life"
   "the essentials of the good life"
   "allow farmers to buy their requirements under favorable conditions"
   "a place where the requisites of water fuel and fodder can be obtained"
   

例句

用作名词 (n.)

1. Necessity is the mother of invention.
   需要是发明之母。
2. Want and necessity break faiths and oaths.
   匮乏和需要可以打破信仰和誓言。
3. Water is of vital necessity in the desert.
   在沙漠地区水是维持生命的必需品。
4. Food is a necessity, but wine is an extravagance.
   食物是必需品,而酒则是奢侈品。
5. The necessity for making decisions devolves on him.
   作出决策乃当务之急，此事必然地落在他身上。
6. That men would die was a matter of necessity; which men would die, though, was a matter of circumstance.
   人总有一死，这是必然的事，不过哪些人死，这是偶然的事。

常见句型

用作名词 (n.)

1. You must understand the necessity of education.
   你必须懂得教育的必要性。
2. There is no necessity to buy tickets in advance.
   没有必要提前买票。
3. He was forced by necessity to steal a loaf of bread.
   他为生活所迫偷了一块面包。
4. Most athletes can see the necessity of〔for〕 keeping training.
   大多数运动员都明白坚持训练的必要性。
5. Telephone is now a household necessity.
   现在电话是一种家庭必需品。

经典引文

• I know the rigour of political necessity.

  出自： Burke

• The designation of evolution as a two-stage process of chance..and necessity.

  出自：Daedalus

常用短语

用作名词 (n.)

of necessity

必然,不可避免地necessarily; unavoidably

词汇搭配

用作名词 (n.)

动词+～

• accept〔deny, ignore, see〕 the necessity of 承认〔否认,忽视,看到〕…的必要性
• buy the -ties of life 购买生活必需品
• feel the necessity of 感到有…的必要
• meet necessity 满足需要
• provide -ties of existence 提供生活必需品
• realize the necessity of 意识到…的必要性
• relieve a necessity 解决某一需要
• supply -ties 提供必需品

形容词+～

• absolute necessity 绝对必要
• basic〔physiological, urgent〕 necessity 基本〔生理,迫切〕需要
• daily -ties 日用品
• economic〔political〕 necessity 经济〔政治〕上的需要
• historical〔logical〕 necessity 历史〔逻辑〕的必然性
• household -ties 家庭必需品
• military -ties 军需品
• moral necessity 伦理〔道德〕的需要
• scientific necessity 科学上的需要,符合科学的必然性

介词+～

• by necessity 不得已
• from necessity 由于必要
• in necessity 在贫困中,陷于穷困
• of necessity 必然地,必定,不得已,不可避免地
• in case of necessity 除非必要
• out of sheer necessity 出于不得已
• under the necessity of doing sth 不得已而做某事,有做某事的必要

～+介词

• necessity for 需要…
• necessity of the times 时代的需要
• -ties of existence〔life〕 生活必需品

近反义词

【近义词】

• demand
• need
• requirement

【反义词】

• unnecessary 不必要的
• chance 可能性