rubber nipple

例句：

1. 1. The baby's rubber nipple is soft and comfortable for him to suck on.
   宝宝的乳胶乳头柔软舒适，适合他吮吸。
2. 2. The nurse carefully replaced the rubber nipple with a new one.
   护士小心地用一个新的乳胶乳头替换了旧的。
3. 3. The baby was fussy and cried when he tried to feed with his old rubber nipple.
   宝宝在尝试用他的旧乳胶乳头喂奶时哭闹不安。