地牢里一定会有活板门之类的东西。

There must be something like a trapdoor in the dungeon.

youdao

他们四个把肩膀顶在活板门上，把它举了起来。

The four of them put their shoulders to the trap-door and heaved it back.

youdao

人们住在几个小木屋里，每个小木屋都有一扇活板门。

The people lived in several cabins, each of which had a trapdoor.

youdao

Suppose standing on the bridge next to the fat man, I didn't have to push him, suppose he was standing over a trap door that I could open by turning a steering wheel like that.

假设我站在桥上，胖子就在我旁边，我不用去推他，假设他踩在一扇活板门上方,而活板门可以通过转动方向盘来开启。

耶鲁公开课 - 公正课程节选