嘴在英语中叫做"mouth"，来源于古英语 "mūð"。
例句：
He opened his mouth to speak but no words came out.
他张开嘴要说话，但是什么也没说出来。
She had a cut on her bottom pp from biting her mouth.
她嘴唇下面有一个咬伤，是因为咬了自己的嘴。
He had a bad taste in his mouth after eating the spicy food.
吃了辣的食物后，他嘴里有一种难闻的味道。