antapical palpal seta

例句：

1. 1. The doctor found a small, red anal papilla during the examination.
   医生在检查中发现了一个小的、红色的肛交乳头。
2. 2. The patient had to undergo surgery to remove the anal papilla, which was causing pain and discomfort.
   患者不得不接受手术，以移除导致疼痛和不适的肛交乳头。
3. 3. The anal papilla is a common cause of infections in the anus, so it's important to keep it cleanand dry.
   肛交乳头是肛门感染的常见原因，因此保持其清洁干燥非常重要。