Endo's medium

例句：

1. 1. The endoscopy is a key diagnostic tool in the diagnosis of cystic fibrosis.
   内窥镜是诊断囊性纤维化的关键诊断工具。
2. 2. The endoscopist uses a flexible tube to examine the inside of the patient's throat.
   内窥镜医生使用一根灵活的管子来检查病人喉咙的内部。
3. 3. The endoscopy procedure involves inserting a thin, flexible tube into the patient's body to view organsand tissues.
   内窥镜手术涉及将一根细长的柔性管插入患者体内以查看器官和组织。