这是很重要的保持你的口腔清洁，尽量和冲洗后的饭菜。

It is important to keep your mouth as clean as possible and rinse after meals.

youdao

这是很重要的保持你的口腔清洁，尽量和冲洗后的饭菜。

It is important to keep your mouth as clean as possible and rinse after meals.

youdao