sleeper

n.

1. 睡觉(呈某种状态)的人
   • Please don't make any noise—my mother's a very light sleeper.
     请安静——我母亲睡觉很轻。
2. 轨枕; 枕木; 道木
3. 卧车
   • I usually go up to London on the sleeper.
     我一般都乘卧车去伦敦。
   • He stepped out of his first-class sleeper on the night express from London.
     他从由伦敦开来的午夜快车的头等卧铺车厢里走出来。
4. 小耳环
5. 未料到获得成功的剧、书、人等