告诉我吧，我嘴巴很严的。

Tell me. My lips are sealed.

youdao

我嘴巴里有两颗糖果。

I have two sweets in my mouth.

youdao

我的心开始怦怦跳，而且嘴巴发干。

My heart had started to thud, and my mouth was dry.

《柯林斯英汉双解大词典》

To disfigure the mouth -- this is how I would interpret it -- to disfigure the mouth has a primary effect in rendering one at least temporarily speechless.

把嘴巴丑化--这就是我所理解的-,丑化自己的嘴巴使自己暂时不能说话,它是有十分重要影响的。

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