sober 
英 [ˈsəʊbə(r)]  美 [ˈsəʊbər] 
adj. 有节制的；清醒的，冷静的；未醉的；素净的

v. （使）冷静，清醒，醒酒；（使）严肃

例句：
When Dad was sober he was a good father. 

爸爸清醒的时候是个好父亲。

We decided to wait until he was sober. 

我们决定等到他醒酒。

Rudolph knew he had to stay sober to drive home. 

鲁道夫知道他必须保持清醒才能开车回家。

We are both deeply moved and sobered by this moment. 

这一时刻让我们俩深受感动，变得更加严肃。