abdominal external ring

例句：

1. 1. The surgeon performed a laparotomy to remove the abdominal external ring.
   外科医生进行了腹腔镜手术，以取出腹外环。
2. 2. The patient's abdominal external ring was causing significant discomfort.
   患者的腹外环引起了严重的不适。
3. 3. The abdominal external ring is an important component of the digestive system.
   腹外环是消化系统的一个重要组成部分。