- [uncountable]
the fact that something must happen or be done; the need for something 必然；必要；需要 - necessity for something
We recognize the necessity for a written agreement. 我们认为有必要签订一份书面协议。 - necessity of (doing) something
We were discussing the necessity of employing more staff. 我们在讨论是否需要雇用更多员工。 - necessity (for somebody) to do something
There had never been any necessity for her to go out to work. 她从来就没有出去工作的必要。 There is absolutely no necessity for you to be involved. 你完全没有必要参与进来。 - of necessity
This is, of necessity, a brief and incomplete account. 这必然是一个简略的、不完全的描述。 - out of necessity
He is changing job out of necessity, not because he particularly wants to. 他不得已才换工作，并非是自己特别愿意。 These animals don't like water but will swim if the necessity arises. 这些动物不喜水，但必要时会游泳。
Extra ExamplesTopics Permission and obligationb2Culling of the animals was born out of the necessity for successful conservation. 宰杀动物中的弱者是保护自然的必要措施。 Driven by financial necessity, she decided to give up her writing career. 由于经济需要，她决定结束写作生涯。 I've never felt the necessity to rely on such a strict rule. 我从不觉得非得遵循如此严格的规定。 Most disputes can be resolved without the necessity of going to court. 大多数争端无需提到法庭上去就能解决。 Most of the women are forced, through economic necessity, to work in part-time low-paid jobs. 大多数妇女出于经济原因才不得不做一些报酬低廉的兼职工作。 Mrs R has been spared the necessity of having to give evidence. R 夫人获准不是非要作证不可。 Necessity forced an urgent solution. 有必要立即解决问题。 Observers stressed the necessity for the ceasefire to be observed. 观察员强调必须遵守停火协议。 She saw the necessity to make an immediate impression on him. 她意识到必须立刻给他留下印象。 The company sees no necessity for a more cautious approach to investment. 公司认为没有必要采取更加谨慎的投资方式。 The visit will, of necessity, be brief. 访问时间势必会很短暂。 There's no necessity for you to come. 你没有必要来。 They have accepted the necessity of greater state intervention. 他们已经认同国家进一步介入的必要。 This rule is carried no farther than necessity requires. 这项规定仅限于在必要时施行。 Where necessity demands, we can seat more guests in the gallery. 如果必要，我们能在廊厅安排更多的客人就座。 You can dial direct without the necessity of going through the operator. 你可以直接拨号，不必通过接线员。 the necessity to earn a living 谋生的需要
Oxford Collocations Dictionaryadjective- absolute
- fundamental
- sheer
- …
- become
- recognize
- see
- …
- arise
- dictate (something)
- require (something)
- …
- of necessity
- out of necessity
- through necessity
- …
- any necessity
- no necessity
- necessity for something
- [countable]
a thing that you must have and cannot manage without 必需的事物；必需品 Many people cannot even afford basic necessities such as food and clothing. 许多人甚至买不起食物和衣服之类的基本必需品。 Air-conditioning is an absolute necessity in this climate. 这样的气候绝对需要有空调。
Extra ExamplesThey have nothing but the barest necessities. 除了最基本的必需品之外，他们一无所有。 The people in the rural areas use mud bricks only as an immediate, practical necessity. 农村人只是把泥砖作为一种便捷实用的必需品。 Sleep is an absolute necessity for life. 睡眠是生命中绝对必要的。 Food is a necessity of life. 食物是维持生命所必需的。 He argued that nuclear weapons were a political necessity. 他认为核武器在政治上是必需的。 Policies which address these issues are an urgent necessity. 迫切需要的是解决这些问题的政策。
Oxford Collocations Dictionaryadjective- absolute
- vital
- real
- …
- have
- lack
- a necessity of life
- [countable, usually singular]
a situation that must happen and that cannot be avoided 必然性；不可避免的情况 Oxford Collocations Dictionaryadjective- absolute
- fundamental
- sheer
- …
- become
- recognize
- see
- …
- arise
- dictate (something)
- require (something)
- …
- of necessity
- out of necessity
- through necessity
- …
- any necessity
- no necessity
Word Originlate Middle English: from Old French necessite, from Latin necessitas, from necesse ‘be needful’.
Idioms
make a virtue of necessity
to manage to gain an advantage from something that you have to do and cannot avoid 不得已而力争有所得 She decided to make a virtue of necessity and combined a business trip to Paris with a visit to her cousins there. 她决定利用生活的需要，把去巴黎出差和去看望那里的表兄妹结合起来。
necessity is the mother of invention
- (saying)
a difficult new problem forces people to think of a solution to it 需求是发明之母