Anthracosis is nothing more than accumulation of carbon pigment from breathing dirty air.Smokers have the most pronounced anthracosis.
由于呼吸污染空气导致的碳末沉着症并不多
，吸烟会引起更明显的碳末沉着症。
Anthracosis is nothing more than accumulation of carbon pigment from breathing dirty air.Smokers have the most pronounced anthracosis.
由于呼吸污染空气导致的碳末沉着症并不多，吸烟会引起更明显的碳末沉着症。
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