necessity信息详情
n.需要；必然性；必需品
needcessity───需要性
necessary───adj.必要的；必需的；必然的；n.必需品；n.(Necessary)（英）内塞瑟里（人名）
nonnecessity───非必要性
of necessity───必然地；不可避免地
necessarily───adv.必要地；必定地，必然地
necessitate───vt.使成为必需，需要；迫使
necessitied───必要的
necessities───n.必需品（necessity的复数）
necessitous───adj.贫困的，贫穷的；紧急的
We were discussing the necessity of employing more staff.───我们在讨论是否需要雇用更多员工。
Water is a basic necessity of life.───水是一种基本生活必需品。
There is agreement on the necessity of reforms.───关于改革的必要性有一致意见。
This was done largely out of necessity, as the fiber crops that were previously used for the process were experiencing a shortage.───这样做主要是出于需要，作为纤维作物，以前使用的过程中经历了短缺。
As a struggling mom with a high school education, 34-year-old Karen Hoxmeier had always been a bargain hunter . by necessity.───作为一个只有高中学历，在困境中挣扎的母亲，为了生活的必须，34岁的KarenHoxmeier总是购买廉价货。
If only they would realize above all that an artist works of necessity, that he himself is only an insignificant part of the world.───要是人们能认识到最重要的是一个艺术家的必要的作品，艺术家本人只是世界无关紧要的一部分。
To them, slavery was no longer just a question of right or wrong. It was a necessity for survival.───对于他们而言，拥有奴隶不再是一个对与错的问题，而是生存之所必须。
Shopping is no longer just a necessity; it has become a form of entertainment.───购物不仅仅是一种需要，它还成为一种娱乐休闲方式。
She writes: "Gorbachev and his advisers did not comprehend the chance that had opened up, and the necessity of moving quickly to seize it. "───她写道：“戈尔巴乔夫及其顾问没有理解他们面前出现的机遇，以及迅速行动抓住这个机遇的必要性。”
She saw books as a necessity, not a luxury.
There is agreement on the necessity of reforms.
Water is a necessity of life.
Necessity knows no law.
The best teacher one can have is necessity.
The people in the rural areas use mud bricks only as an immediate, practical necessity.
A friend is known in necessity.
This is, of necessity, a brief and incomplete account.
Necessity (or Need) has (or knows) no law.