1、嘴巴的英文单词是mouth，音标：英[maʊθ]美 [maʊθ]。

2、例句：（1）他有一张大嘴巴，一双滑稽的灰眼睛。He had a wide mouth and humorous grey eyes.（2）他张着嘴巴，打着呼噜。His mouth was open, and he was snoring.（3） 她张开没牙的嘴巴对我们笑了笑。She gave us a toothless grin.