knee是什麼意思

例句：

She gave her knee a quick rub.

她很快地揉了揉膝蓋。

It hurts when I bend my knee.

我的'膝蓋一彎就疼。

The water was only knee-deep.

水只有齊膝深。

I fell over and cut my knee.

我摔倒了，劃破了膝蓋。

Is your knee still painful?

你的膝蓋還疼嗎？

I had only bruised my knee.

我只是膝蓋受了瘀傷。