sober 清醒的，未醉的

　　He was drunk yesterday , but now he is sober.

　　他昨天喝醉了的,但现在是清醒的。

　　sober up 使清醒

　　I need a cup of tea to sober myself up.

　　我需要一杯茶来醒醒酒。

　　疯狂练习吧！