COPD is a progressive, life-threatening respiratory disease commonly caused by cigarette smoke and other harmful fumes and particles, resulting in inflammation and narrowing of airways.

慢性阻塞性肺病是一种进行性、威胁患者生命的呼吸系统疾病，通常由香烟烟雾和其它有害烟雾和尘粒所引起，导致患者产生肺部炎症和气道狭窄。