black sheep

害群之马, 败家子, 败类

例句与用法：

After he had been in prison Peter was regarded as the black sheep of the family.

彼得坐过牢之后，被看作是家庭中的不肖子孙。

Perhaps every profession has got its black sheep.

也许每个行业都有害群之马。

He was the black sheep of the family after he had got involved in the bank robbery.

在他被牵累进银行抢劫案后，就成了全家的败家子。

详细释义：

败类, 害群之马

They say I'm the black sheep of the family because I decided to be an actor.

他们说我是家里的败类, 因为我决定去当个演员。