light up

点亮, 照亮

例句与用法：

The great speed of light explained why when we turn on a lamp in a dark room, the lamp and everything else in the room seem to light up at once.

巨大的光速解释了为什么当我们在黑暗的房间里打开电灯时，灯和房间里的一切都似乎立即亮起来。

The fire lit up her face.

炉火照亮了她的脸。

Because of the great speed of light, we see a lamp light up almost at the exact moment we turn it on.

由于光速极快，我们几乎能在开灯的那一瞬间就看见电灯亮起来。

A brilliant sun lit up their rooms.

灿烂的阳光照亮了他们的屋子。

详细释义：

1. 点燃

He lit up a cigarette.

他点燃了一支香烟。

2. 照亮

The sun lights up the sky and the earth.

太阳照亮了天空和大地。