sleeper
中文来自 ECDICT
- n.
- 睡眠者，枕木，卧铺
1词源 1
构词拆分
sleep词根/词干
+
-er后缀
(added to verbs) A person or thing that does an action indicated by the root verb; used to form an agent noun. · (added to verbs, informal) A person or thing to which the root verb is done or can be done satisfactorily.
演变路径（由近及远）
- 英语
- 继承自 ←中古英语 sleper
词源说明
释义（英文）
名词 Noun
- Someone who sleeps.
- That which lies dormant, as a law.
- A spy, saboteur, or terrorist who lives unobtrusively in a community until activated by a prearranged
2词源 2
词源说明
Compare Norwegian sleip (“a sleeper (a timber); as adjective, slippery, smooth”). See slape.
释义（英文）
名词 Noun
- (rail transport, UK) A railroad tie.
- (carpentry) A structural beam in a floor running perpendicular to both the joists beneath and floorboards above.
- (nautical