labial papilla

例句：

1. 1. The doctor examined the patient's mouth and found a labial papilla that needed to be removed.
   医生检查了病人的口腔，发现一个需要切除的唇腺乳头。
2. 2. During the surgery, the surgeon carefully removed the labial papilla from the patient's lip.
   手术中，外科医生小心翼翼地从病人的唇上移除了唇腺乳头。
3. 3. The labial papilla is responsible for producing saliva, which helps moisten and protect the mouth.
   唇腺乳头负责产生唾液，这有助于湿润和保护口腔。