顺从well-behaved

• 乖乖地睡吧。

  Quietly go to sleep.

• 孩子乖乖地走出了房间。

  The child walked obediently out of the room.

• 敌人乖乖地当了俘虏。

  The enemy were captured without a struggle.

称小孩pet name for a child

表示惊讶或赞叹good gracious

• 乖乖，外边真冷！

  Good gracious! It's really cold outside.