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来源:雅诚德英语网
COPD are lung diseases such as bronchitis and emphysema, which are characterized by shortness of breath.
慢性阻塞性肺病是肺部疾病如支气管炎、肺气肿,这些病的特征是呼吸急促。
COPD are lung diseases such as bronchitis and emphysema, which are characterized by shortness of breath.
慢性阻塞性肺病是肺部疾病如支气管炎、肺气肿,这些病的特征是呼吸急促。