He flicked a switch and all the lights went out.

他啪的一声按了下开关，灯全熄了。

《牛津词典》

Please switch the lights off as you leave.

你离开的时候请把灯关了。

《牛津词典》

Turn the light off as you go out.; Please switch off the lights when you leave.

出门时请随手关灯。

《新英汉大辞典》

Hackers eventually got in on the game, using mail-order infrared transmitters to switch red lights to green.

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"In hotels, switch off lights and re-use linens, " advises Chan.

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This could include the Norfolk and Norwich Festival and the annual Christmas lights switch-on.

BBC: Plan for Olympic screen for city