It's named Soot because it's so black, an' it hops an' flies about with him everywhere.

它叫煤灰，因为它太黑了，它跟着他到处跳，到处飞。

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The Gulf was awash in poisonous smoke, soot and ash. Black rain fell.

波斯湾充斥着有毒的烟雾、烟尘和灰烬，并且下起了黑雨，出现了石油湖泊。

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At the moment, most eyes are on soot (or "black carbon", as jargon-loving researchers refer to it).

当前，绝大多数眼球都注目于煤烟(或是“黑炭”，喜欢术语的研究者更倾向于使用这个单词)。

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Images from the 1970s--of rattling engines and tailpipes spewing black soot--are hard to shake.

FORBES: The Other Green Engine: Diesel?

Greenhouse gases apart, experts say, emissions from India's power plants, factories and transportation have led to the accumulation of aerosols and black soot in the skies of the Indian sub-continent.

BBC: South Asian bloc active at climate meeting

It developed black wings, so that it was invisible when it settled on soot-covered tree trunks.

ECONOMIST: Pollution and evolution