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

请把门和所有的窗户关上。

Please close the door and all the Windows.

youdao