tracheoscopy

例句：

1. 1.He underwent a tracheoscopy to diagnose the cause of his cough.
   他接受了一次气管镜检查，以诊断他的咳嗽原因。
2. 2. The doctor recommended a tracheoscopy for his chronic respiratory disease.
   医生建议他进行一次支气管镜检查，因为他有慢性呼吸疾病。
3. 3. During the procedure, the patient was given anesthesia and then underwent a tracheoscopy.
   在手术过程中，患者接受了麻醉，然后进行了一次气管镜检查。