necessity

noun

1. anything indispensable

e.g. 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

Synonym: essentialrequirementrequisitenecessary

2. the condition of being essential or indispensable

1. 必然;必要
The necessity of something is the fact that it must happen or exist.

e.g. There is agreement on the necessity of reforms...
对改革的必要性已经达成了共识。
e.g. As soon as the necessity for action is over the troops must be withdrawn...
一旦军事行动的必要性不复存在，军队就必须撤出。

2. 必需品;必不可少的事物
A necessity is something that you must have in order to live properly or do something.

e.g. Water is a basic necessity of life.
生命离不开水。
e.g. ...food, fuel and other daily necessities.
食物、燃料和其他日常必需品

3. 不可避免的情况(或行动)
A situation or action that is a necessity is necessary and cannot be avoided.

e.g. The President pleaded that strong rule from the centre was a regrettable, but temporary necessity.
总统辩解说，实行高度的中央集权虽不尽如人意，但暂时来说却是必要的。

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,