mouth形容詞

英語中mouth是一個名詞，意思是嘴，嘴巴，它的形容詞是mouthful，意思是滿口的，一口的。

例如

Open your mouth and you can speak English fluently sooner or later.

If you don't feel comfortable now， I think you'd better drink a mouthful of water or take a deep breath.