| 单词 | sleeper |
| 释义 | sleeper n. 1. a person or animal that sleeps. 2. Brit. a wooden or concrete beam laid horizontally as a support, esp. for railway track. 3. a a sleeping-car. b a berth in this. 4. Brit. a ring worn in a pierced ear to keep the hole from closing. 5. a thing that is suddenly successful after being undistinguished. 6. a sleeping-suit. 7. a spy or saboteur etc. who remains inactive while establishing a secure position. |
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