submandibular duct

例句：

1. 1. The submandibular duct is responsible for draining saliva from the mouth.
   下颌导管负责将口腔中的唾液排出。
2. 2. During surgery, the surgeon must carefully incise the submandibular duct to avoid damaging the nerves.
   在手术过程中，外科医生必须小心切开下颌导管，以免损伤神经。
3. 3. The patient was unable to speak due to a blockage in the submandibular duct.
   由于下颌导管堵塞，患者无法说话。