Please switch the lights off as you leave.

你离开的时候请把灯关了。

《牛津词典》

Try to switch all the lights off in as few taps as possible.

你需要用最少的点击数来把所有的灯泡关闭。

youdao

Before you start please be sure to switch off all the lights.

出发前请务必把所有的灯关掉。

youdao

Before you start please be sure to switch off all the lights.

出发前请务必把所有的灯关掉。

youdao