trap-door
英[t'ræpd'ɔːr]
美[t'ræpd'ɔːr]
- n.活板门
详细释义
名词 trap door:
-
a hinged or sliding door in a floor or ceiling
双语例句
- In one corner a ladder went up to an open trap door.
角落里有一道梯子，通往上面敞开的活板门。 - Elevator maintenance can be carried out from outside the well through a trap.
可以通过活板门在电梯运行井道外维修电梯。
用作名词 (n.)
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