离开实验室前，请关上所有的窗户。

Shut the windows before your leave the lab.

youdao

务必把所有的窗户都关上。

Make sure that all the Windows are closed.

youdao

所有的窗户都关上了吗？

Are all the Windows shut?

youdao

在离开教室前，我关上了所有的窗户。

Just before I left the classroom, I closed all the window.

youdao

请把门和所有的窗户关上。

Please close the door and all the Windows.

youdao

在早晨离开房子之前，他仔细地关上楼下所有的门，打开一些窗户透气。并锁住前门。

Before he left the house in the mornings, he carefully closed all the doors downstairs, opened some Windows to let the air in and locked the front door.

youdao

在早晨离开房子之前，他仔细地关上楼下所有的门，打开一些窗户透气。并锁住前门。

Before he left the house in the mornings, he carefully closed all the doors downstairs, opened some Windows to let the air in and locked the front door.

youdao