Muck truck Yisa problem and the vehicle with the dust flying, is also one of the main sources of air pollutants.

渣土车遗撒问题和车辆带起的扬尘飞扬，也是空气污染物的主要来源之一。

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Some turned into a bit of jade dust, smoke, or fog, such as dust, flying freely in the air.

有的化作点点玉屑，如烟、如雾、如尘，在空中自由地飞舞。

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Some turned into a bit of jade dust, smoke, or fog, such as dust, flying freely in the air.

有的化作点点玉屑，如烟、如雾、如尘，在空中自由地飞舞。

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