GbEng
他非常疲劳, 很快就睡着了。 He was so tired that he fell asleep quickly.
我还没来得及给他盖好被子,他就睡着了。 He was asleep before I tucked him in.
别惊动他,他睡着了。 Don't disturb him----he has flaked out.
他很困倦,上课时候都睡着了。 He was so sleepy that he fell asleep during the class.