The fire burnt up suddenly.

火突然烧起来了。

We burnt up all the garden rubbish.

我们将花园中的垃圾全部烧掉了。

Upwards of a billion stars in our galaxy have burnt up their internal energy sources, and so can no longer produce the heat a star needs to oppose the inward force of gravity.

在我们的星系中，超过10亿颗恒星已经耗尽了它们的内部能量来源，因此无法再产生恒星所需的热量来对抗向内的引力。

All the wood has been burnt up.

所有木材已经烧光。

Stay away from him. He is all burnt up now.

不要惹他，他现在怒火中烧。