Before leaving, turn off all the lights. (Before you leave, turn off all the lights.)

走之前，请关闭所有的灯。

youdao

For the fourth year, people are being urged to turn off their lights for one hour to call attention to the issue of climate change.

VOA: special.2010.03.22

The first of these is rhythmic, so we're going to turn now -I guess we'll turn off the lights and we're going to go to a couple of slides here.

其中第一项技巧就是节奏,因此我们现在就要看看,我想我们要关灯,因为我们将要看组幻灯片

耶鲁公开课 - 聆听音乐课程节选

And I said turn the lights off because I had looked at the electricity bill.

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Among them: Officials can't even figure out how to turn the lights off.

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"It's unprecedented that we're going to turn the lights off on 168 towers on April 1, and we don't have any information from the FAA on how that's going to work, " he said.

CNN: FAA begins process to close 168 towers on April 1