depressor labii inferioris

例句：

1. 1.The doctor examined the patient's lower lip and found a small swelling there.
   医生检查了病人的下唇，发现那里有一个小肿块。
2. 2. During surgery, the surgeon needed to cut through the infraorbital artery to access the brain.
   手术中，外科医生需要切开下唇动脉以到达大脑。
3. 3. The patient was given an injection of medication that would temporarily numb the infraorbital artery.
   患者被注射了一种药物，这种药物会暂时麻木下唇动脉。