zygolabialis

例句：

1. 1. The patient's facial expression was very serious.
   病人的面部表情非常严肃。
2. 2. The doctor examined the patient's labia for any signs of infection.
   医生检查了病人的唇部，以寻找任何感染的迹象。
3. 3. During the surgery, the surgeon had to make incisions on both sides of the patient's zygolabial area.
   手术中，外科医生必须在患者的面部两侧进行切口。