paxillae

例句：

1. 1. The baby's paxillae are soft and sensitive.
   宝宝的乳头柔软且敏感。
2. 2. She carefully examined the paxillae of the animal.
   她仔细检查了动物的乳头。
3. 3. During labor, the mother's paxillae can become painfully enlarged.
   在分娩过程中，母亲的乳头可能会变得疼痛地肿大。