Chronic obstructive pulmonary disease (COPD), of which emphysema and chronic bronchitis are the most common form (and often co-exist), is characterized by swelling of the airways.
慢阻肺通常表现为肺气肿或慢性支气管炎，二者经常共存，其特征是气道扩张。
Chronic Obstructive pulmonary Disease (COPD) is a slowly progressive airway and pulmonary destructive inflammation, including chronic bronchitis and emphysema.
慢性阻塞性肺疾病(COPD)是一种慢性进行性气道和肺组织破坏性疾病。
Another health problem associated with tobacco is emphysema, which, when combined with chronic bronchitis, produces chronic obstructive pulmonary disease.
另一个与烟草相关的健康问题是肺气肿，当结合慢性支气管炎，慢性阻塞性肺疾病。
"Big deep breaths in through your nose and out through your mouth." Chronic obstructive pulmonary disease includes emphysema and chronic bronchitis, as well as asthmatic bronchitis.
VOA: special.2010.06.23
Chronic Obstructive Pulmonary Disease stems from emphysema and chronic bronchitis, as well as asthmatic bronchitis.
VOA: standard.2010.06.21
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