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.

youdao

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.

youdao

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.

youdao