一切都变黑了！我们公寓所有的灯都关了，包括电视。妈妈拿出蜡烛，爸爸去看发生了什么事。
Everything went black! All the lights in our flat turned off, including the TV. Mum took out the candles and Dad went to see what was going on.
当你离开的时候，确信所有的灯都关了。
在离开教室前，请确认一下所有的灯都关了。
Before leaving the classroom, please make sure that all the lights are off.
当我们离开教室，我们要确保所有的灯都关了。
When we leave classroom, we should make sure that all the light are off.
把普通的灯具换成节能灯，当你离开家时，记得把所有的灯都关了。
Change normal lights into energy-save ones and leave no more than one light open when you leave home.
把普通的灯具换成节能灯，当你离开家时，记得把所有的灯都关了。
Change normal lights into energy-save ones and leave no more than one light open when you leave home.
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