They are burning off the stubble in the fields.

他们正在烧掉地里的残茬。

《新英汉大辞典》

The universe once again became transparent to light, like the Sun burning off a morning fog.

就像阳光蒸发了晨雾一样，宇宙再次对可见光透明了。

youdao

Now that they have gathered in the crops, the farmers are burning off the stubble in the fields.

农民们既然已经收获了庄稼，现在正在把田里的麦茬烧掉。

youdao

Satan has roused himself from off the burning marl, and he stands in order to call up his fallen minions, to rouse them to acts- great acts of heroism.

撒旦已经从灰土中站起身，召唤着他同样堕落了的随从们，唤醒他们实现英雄之举。

耶鲁公开课 - 弥尔顿课程节选

Siberia is ablaze with the surplus gas from oil wells just burning off into the sky, adding to Russia's pollution problem.

ECONOMIST: Reforming Russia's gas behemoth

They also plan within the next decade to stop wastefully burning off the natural gas that is found with the oil.

ECONOMIST: You also have to know how to manage it

Spectrometers on the "chase planes" picked up in this light shower the signatures of the various materials in the ship burning off.

BBC: Revealing the secrets of falling to Earth