“不要关灯。” 哈利补充道。 听到有人从门外的楼梯下来，他俩分别靠在门两边的墙上。

"Leave the lights on, " Harry added, and as they heard someone descending the steps outside the door, they backed against the wall on either side of it.

youdao

离开教室时，我们永远不要忘记关灯。

We should never forget to turn off the lights when we leave the classrooms.

youdao

有多少次，你的母亲告诫你在离开房间时要随手关灯，或是不要在想着要吃什么时开着冰箱的门？

How many times has your mother told you to turn off the lights when you leave a room, or to close the fridge door while you decide what to eat.

youdao