anal cone

例句：

1. 1. The doctor removed the anal cone to examine the patient's anus.
   医生切除了肛门圆锥来检查患者的肛门。
2. 2. During childbirth, the anal cone is a crucial part of the process.
   在分娩过程中，肛门圆锥是至关重要的一部分。
3. 3. The anal cone is responsible for maintaining the integrity of the anal canal.
   肛门圆锥负责维护肛管的完整性。