lung being connected with large intestine

例句：

1. 1. He was diagnosed withlung cancer and underwent surgery.
   他被诊断出患有肺癌并接受了手术。
2. 2. The doctoradvised him to take a deep breath andrelax his lungs.
   医生建议他深呼吸，放松肺部。
3. 3. Lung cancer isthe leading cause of death worldwide.
   肺癌是全球最主要的死因。