黑肺是一种由经常吸入煤尘引起的煤矿矿工疾病。
Black lung is a coal miner's disease caused by the frequent inhaling of coal dust.
慢性支气管炎是一种形式的慢性阻塞性肺疾病。
Chronic bronchitis is one of the forms of chronic obstructive lung disease.
慢性阻塞性肺简称慢阻肺，是一种危及生命的疾病，通常是由常年吸烟造成的。
Chronic obstructive pulmonary disease, or COPD, is a life-threatening condition commonly caused by years of smoking.
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