Ductus submandibularis

例句：

1. 1.The doctor removed the ductus submandibularis to relieve his patient's pain.
   医生切除了下颌下腺以缓解病人的疼痛。
2. 2.The operation involved removing the ductus submandibularis.
   手术涉及切除下颌下腺。
3. 3. The patient was given medication to alleviate symptoms caused by the ductus submandibularis.
   患者被给予药物以缓解由下颌下腺引起的症状。