Snow White ate the bad apple.

白雪公主吃了毒苹果。

There's always a bad apple in every bunch.

到哪儿都有害群之马。

There is always a bad apple in every bunch.

在那儿都有害群之马。

Better don't talk to George. He is a bad apple.

最好别理乔治。他是个坏蛋。

There's one bad apple for every three good ones.

每四个苹果里就有一个坏的。