knee/niː/

n. the middle part of your leg which allows it to bend

n. [C] 膝盖：She was on her knees scrubbing the floor. 她跪着擦地板。

◇He suffered a serious knee injury. 他的膝盖受了重伤。

音组-ee/-iː/

agree; bee; fee; flee; free; knee; see