所有这些都对牙齿的珐琅质起到保护作用。

All these rise to protect action to dental enamel.

youdao

她牙齿的珐琅质很白。

The enamel of her teeth is very white.

youdao

珐琅质严重损坏的牙齿。

Teeth with badly damaged enamel.

youdao

珐琅质，形成保护膜，使您的牙齿更坚固，健康。

Enamel, the formation of protective film, to make your teeth more strong, healthy.

youdao

珐琅质，形成保护膜，使您的牙齿更坚固，健康。

Enamel, the formation of protective film, to make your teeth more strong, healthy.

youdao