A freight car with a door in the floor through which materials are unloaded.

底卸式车一种货车，底下装有可卸货的门。

youdao

Aunt Em, badly frightened, threw open the trap door in the floor and climbed down the ladder into the small, dark hole.

爱姆婶婶十分害怕，打开地板上活动的门，爬下梯子，躲到那又小又黑的地洞里去。

youdao

Every morning I lay on the floor in the front parlour watching her door.

每天早上我都趴在前门厅的地板上，看着她家的门。

youdao

"The Door in the Floor" is not so much moving as it is stirring and commanding, and it's somewhat tentative in several spasms of physical comedy meant to relieve the seriousness.

WSJ: 'Door in the Floor' Hinges on Performances

Since "The Door in the Floor" is a movie very much about telling stories, and one that tells them at its own measured pace, I'll keep plot details here to a minimum.

WSJ: 'Door in the Floor' Hinges on Performances

The door and ground floor windows of the house in Leyton Road have been covered with metal shutters.

BBC: Neglect charge over girl's death