Chronic obstructive pulmonary disease (COPD) is a leading cause of disability and death, affecting approximately 11.4 million people in the United States and millions more across the world.
慢性阻塞性肺炎(COPD)是主要的致残和致死的原因。这种疾病影响了近乎1140万美国人，并且在世界范围内更是数以万计。
Chronic obstructive pulmonary disease, or C. O. P. d., affects more than 200 million people around the world.
慢性阻塞性肺疾病(或简称C.O.P.D。)影响了全世界两亿多人的健康。
Chronic obstructive pulmonary disease, or C. O. P. d., affects more than 200 million people around the world.
慢性阻塞性肺疾病(或简称C.O.P.D。)影响了全世界两亿多人的健康。
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