He straightened up and looked at me, open-mouthed.

他直起身子看着我，嘴大张着。

Sam, their smart-mouthed teenage son.

萨姆，他们十几岁的伶牙俐齿的儿子。

He put the flowers in a wide-mouthed blue vase.

他把花放进一只蓝色的阔口花瓶里。