牙齿的英文是 "teeth"，读作 [tiːθ]。

这个词来源于古英语 "tēeth"，最初是指动物的牙齿。后来，人类也开始使用这个词来描述自己的牙齿。

下面是一些英文例句和中文翻译：

She brushed her teeth twice a day. (她每天刷两次牙。)
He had a toothache, so he went to the dentist. (他牙疼，所以去看牙医了。)
The pon showed its teeth when it was angry. (狮子生气时展露出牙齿。)
The pttle boy lost one of his baby teeth. (这个小男孩掉了一颗乳牙。)