extensible trap door.
可延长的翻板

The trap door was locked.
可是，活板门上了锁。

platform trap door bumper.
翻板缓冲档

to trap one's finger in the door
某人的手指被门缝夹了一下

a trap door that made me curious.
一个活动门使我感到好奇。

The face in the trap-door was a fiery red.
那扇天窗门的门脸儿火红火红的。

And all that we know is he uses a trap door.
我们都知道他用的是地板上的活门。

I dropped a logic bomb through the trap door.
我从后门放进一个逻辑炸弹。

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。

The dirt had to be scraped away to uncover a trap door.
地板门上面的泥土已经被打扫干净了。

My uncle Philip had very skillfully made a concealed trap-door.
我叔叔菲利普用他高超的技术做了一扇隐蔽的地板门。

Nancy knew she'd be a sitting duck when she raised the trap door.
南希明白，只要一打开天窗，她马上就会成为受攻击的目标。

Place the door of the carrier facing the rear of the covered trap.
放置面对隐蔽着得圈套后面得运送者得门。

A dungeon with a trap door in the ceiling as its only means of entrance or exit.
地下土牢顶部有一供出入的活板门的土牢

Something, such as a trap door on a gallows, that is arranged to fall or be lowered.
下落板被设计降低或落下的东西，如绞刑架的下落板

Making his way through the tainted crowd, dispersed up and down this hideous scene of action, with the skill of a man accustomed to make his way quietly, the messenger found out the door he sought, and handed in his letter through a trap in it.
肮脏的人群满布在这种恐怖活动的现