膝盖英文怎么说?

膝盖在英语中称为 "knee". 这个词源自古英语中的"cneo"，最初是指人类和动物的膝盖。

例句：

My knee hurts when I cpmb stairs. (我爬楼梯时膝盖很疼。)
She has a knee injury and can't play soccer anymore. (她的膝盖受伤了，不能再踢足球了。)
He had surgery on his knee to repair a torn pgament. (他的膝盖做了手术来修复断裂的韧带。)