牙齿单数英语

tooth 牙齿（单数）

teeth 复数

扩展资料

1、The residents are fighting tooth and nail to stop the new development.

居民为制止新的`建房开发计划正在全力以赴进行斗争。

2、When did she cut her first tooth?

她什么时候长出的第一颗牙？

3、A high proportion of five-year-olds have teeth in poor condition.

五岁儿童牙齿不健康的比例高。

4、The dentist may decide that the wisdom teeth need to be extracted.

牙医可能会认为智齿需要拔掉。