名词
中文翻译：肺气肿
同义词：
['chronic pulmonary emphysema', 'chronic obstructive pulmonary disease (COPD)', 'chronicbronchitis', 'emphysema']
例句：
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1. He was diagnosed with pneumonia and had to stay in the hospital for several weeks.
他得了肺炎，不得不在医院住了几周。
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2. The patient's condition worsened after being exposed to polluted air.
这名患者的病情在暴露于污染空气后恶化了。
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3.Pneumonia is a serious lung infection that can lead to complications if left untreated.
肺炎是一种严重的肺部感染，如果不治疗可能会导致并发症。