necessity的双解释义是：n.(名词)[U]必要(性); (迫切)需要 circumstances that force one to do sth; state of being necessary[C]必需品 necessary thing[S]自然规律 natural law that is seen as governing human action。necessity的意思是n.需要；必需品；必然。necessity名词复数:necessities。
一、英英释义点此查看necessity的详细内容
"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"
二、网络解释
1. 必要：对学校会计职业道德教育存有异议的观点主要体现在相关性(relevance)、必要(necessity)、有效性(effectiveness)上. 会计与道德不相关的第二种解释具有更大的迷惑性. 这种迷惑性表现在于理论上的深厚渊源. 相对于第一种解释中过于浅白的技术与道德的区分,
三、例句
Necessity is the mother of invention.
需要是发明之母。
Want and necessity break faiths and oaths.
匮乏和需要可以打破信仰和誓言。
Water is of vital necessity in the desert.
在沙漠地区水是维持生命的必需品。
Food is a necessity, but wine is an extravagance.
食物是必需品,而酒则是奢侈品。
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。
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。
四、常用短语
五、经典引文
I know the rigour of political necessity.
出自：BurkeThe designation of evolution as a two-stage process of chance..and necessity.
出自：Daedalusnecessity的相关近义词
necessity的相关反义词
necessity的相关临近词
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