他张着嘴呼吸。

He was breathing through his open mouth.

《牛津词典》

他的嘴抿成了一道细缝。

His mouth tightened into a thin line.

《牛津词典》

她用偷来的绷带快速将他捆紧，并塞住了他的嘴。

She trussed him quickly with stolen bandage, and gagged his mouth.

《柯林斯英汉双解大词典》

I think of it as a kind of reply to that famous question in "Leda and the Swan"; that is, "did she put on his knowledge with his power before the indifferent beak could let her drop?"

这是对丽达和天鹅中那个,著名问题的回答，在那冷漠的嘴把她放下之前,她是否用她的力量获取了他的知识？

耶鲁公开课 - 现代诗歌课程节选

Being so caught up, So mastered by the brute blood of the air, Did she put on his knowledge with his power Before the indifferent beak could let her drop?

就这样被征服，这样被天空中野性的血液欺凌，她是否借他之力获得了知识,在那一意孤行的嘴放她下来之前？

耶鲁公开课 - 现代诗歌课程节选

A baby will form his mouth differently depending on what he's sucking on.

婴儿会因为吸吮物体的不同,而改变他的嘴型

耶鲁公开课 - 心理学导论课程节选