submaxillary triangle

例句：

1. 1. The dentist examined the patient's teeth and found a small cavity in the submaxillary triangle.
   牙医检查了患者的牙齿，发现在下颌三角区有一个小洞。
2. 2.During surgery, the surgeon carefully removed the tissue from the submaxillary triangle to avoid damaging the nerves.
   手术中，外科医生小心地从下颌三角区移除组织，以免损伤神经。
3. 3. The patient was advised to avoid chewing gum or hard foods in the submaxillary triangle area after the procedure.
   患者在手术后被建议避免在下颌三角区咀嚼口香糖或吃硬食物。