1 eat like a bird吃得极少

She is very thin because she always eat like a bird.

她很瘦，因为她吃的很少。

2 an early bird早起的人，早到者

I am simply not an early bird.

我就不是个早起的人。

3 old bird老练的人，精明的人

You're an old bird.

你是一个老练的人。

4 get the bird被喝倒彩；被解雇

She just got the bird yesterday.

她昨天被解雇了。

5 be for the birds无聊的；荒唐可笑的

I've watched this movie. It's for the birds.

我看过这部电影，它无聊透了。

6 birds of a feather同类的人（聚在一起）；物以类聚

They're birds of a feather.

他们是一类人。