[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]自然規律 natural law that is seen as governing human action
英英釋義
Noun:
the condition of being essential or indispensable
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"
necessity的用法和樣例：
例句
用作名詞 (n.)
Necessity is the mother of invention. 需要是發明之母。
Want and necessity break faiths and oaths. 匱乏和需要可以打破信仰和誓言。
Water is of vital necessity in the desert. 在沙漠地區水是維持生命的必需品。
Food is a necessity, but wine is an extravagance. 食物是必需品,而酒則是奢侈品。
The necessity for making decisions devolves on him. 作出決策乃當務之急，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. 人總有一死，這是必然的事，不過哪些人死，這是偶然的事。
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