ampulla

例句：

1. 1.He was in a lot of pain after the operation.
   手术后他感到非常疼痛。
2. 2. The doctor told him to stay away from the toilet for a week.
   医生让他一周内不要靠近厕所。
3. 3. She had an operation on her ampulla and is recovering well.
   她做了一次肛管手术，恢复得很好。