在英语中，我们通常用 "mouth" 来指代嘴巴。这个词来自古英语 "mūþ"，最初指代口腔和口唇。例如：

He has a big mouth. (他有一张大嘴巴。)
She always talks with her mouth full. (她总是嘴巴里塞满东西就说话。)
I brushed my teeth and rinsed my mouth before going to bed. (我在睡觉前刷牙并漱口。)

希望这能帮到你！