chrysosis of lung

例句：

1. 1. Chronic bronchitis is a common cause of chronic obstructive pulmonary disease.
   慢性支气管炎是慢性阻塞性肺疾病最常见的原因。
2. 2. He was diagnosed with pneumonia and required hospitalization for treatment.
   他被诊断出肺炎，需要住院治疗。
3. 3. The patient's condition worsened, and he needed to be transferred to the intensive care unit.
   患者的病情恶化，需要被转移到重症监护室。