enough的三种用法口诀

1.enough做形容词，“表示足够的，足够量的”，通常与for连用。如：

They had enough cash for a one-way ticket.

他们有足够的现金买一张单程票。

Her disappearance and death would give proof enough of Charles' guilt.

她的失踪和死亡将提供足够的证据证明查尔斯有罪。

2.enough做副词，表示“足够地， 足够量地，相当地”如：

I was old enough to work and earn money.

我到了可以工作、挣钱的年龄了。

I'm serious, things are difficult enough as they are.

我是认真的，事情照现在这样已经够困难的了。

Winters is a common enough surname.

温特斯是一个相当普通的姓。

3.enough做名词，表示“足够的人或事”，如：

Although the police say efforts are being made, they are not doing enough.

尽管警方说他们正在努力，但是他们做得还不够。