lungyi

例句：

1. 1. He had a lung infection and was hospitalized for several days.
   他得了肺感染，住院了几天。
2. 2. The doctor advised him to take care of his lungs by avoiding smoking.
   医生建议他戒烟来保护他的肺。
3. 3. Lung cancer is a serious disease that can be fatal if not treated early.
   肺癌是一种严重的疾病，如果不及时治疗可能会致命。