pharyngeal canal

例句：

1. 1. The doctor performed a biopsy on the patient's pharyngeal canal to investigate the cause of his chronic cough.
   医生对患者的咽腔进行了活组织检查，以调查他慢性咳嗽的原因。
2. 2. During surgery, the surgeon carefully removed the tissue from the patient's pharyngeal canal.
   手术期间，外科医生小心地从患者咽腔的软组织中取出了组织。
3. 3. The patient was diagnosed with a tumor in his pharyngeal canal, which required immediate surgical intervention.
   患者被诊断出咽腔中有肿瘤，需要立即进行手术治疗。