在英语中，奶头的意思是 "nipple"。这个词来源于拉丁语 "nipplum"，意思是"小喙"。例如：

She placed the baby at her breast, offering him her nipple.

她把婴儿放在她的胸前，提供她的奶头。

The baby was having difficulty latching onto her nipple.

婴儿难以咬住她的奶头。

She felt a sharp pain in her nipple as she breastfed her baby.

她哺乳时感到奶头剧痛。