necessity的例句是：用作名词(n.)Necessity is the mother of invention.需要是发明之母。necessity的意思是n.需要；必需品；必然。necessity【近义词】demand。
一、双解释义点此查看necessity的详细内容
二、英英释义
"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"
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、常见句型
五、常用短语
necessity的相关近义词
necessity的相关反义词
necessity的相关临近词
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