If not, close all doors and Windows.

如果不能，立即关闭所有房门和窗户。

youdao

If the warning sounds, stay inside and close all doors and Windows.

如果警报响了，呆在里面，把所有的门窗都关上。

youdao

After assuring each part is in the condition of normal working, close all doors of as, and then put as, and then put as into operation.

在确认各部分正常工作后，关上组合式变电站所有大门，组合式变电站投入正常运行。

youdao

In the wintertime, he used to turn on the gas stove and close all the doors, so it got real hot in there.

NEWYORKER: We Are Alive

Those two brief stretches of time when all electronic devices must be turned off -- after the doors to the plane close until it is at cruising altitude, and then again on approach for landing -- are being questioned.

CNN: Cell phones on planes? For texting, not gabbing