1. The old man fell asleep.
   那老人睡着了。
2. After a while I fell asleep.
   一会儿以后我睡着了。
3. He soon fell asleep and began to snore.
   他很快睡着并开始打起鼾来。
4. The sentries are liable to fall asleep.
   这哨兵易于睡着。
5. To fall asleep from exhaustion.
   精疲力尽后入睡

　1个动词解释