posterior auricular vein

例句：

1. 1.The posterior auricular vein is an important part of the body's blood circulation system.
   后耳静脉是人体血液循环系统的重要组成部分。
2. 2. During surgery, the surgeon carefully dissected the posterior auricular vein to avoid damaging it.
   在手术过程中，外科医生小心地解剖了后耳静脉以避免损伤它。
3. 3. The posterior auricular vein plays a crucial role in maintaining the health of the ear and balance of the head.
   后耳静脉在维护耳朵健康和头部平衡方面起着至关重要的作用。