学习资料

[意       思]adj. 必需的，必要的
[例]  Food and water are necessary to man. 食物和水是人所不可少的。

更多意思

adj.1.  必需的，必要的
2.  必然的，无法避免的

参考例句

1.	Some adjustment of the lens may be necessary .
	可能有必要调节一下镜头。
2.	It was agreed that another meeting was necessary .
	大家一致认为有必要再开一次会。
3.	How much alteration will be necessary ?
	需要改多少？
4.	The entry of all expenditure is necessary .
	有必要把一切开支入帐。
5.	Illegal immigrants can regularize their position by obtaining the necessary residence permit.
	非法移民获得必要的居留证后即可使身分合法。
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