knee

膝盖、膝、膝关节

She hurt her left knee while playing basketball yesterday.

她昨天打篮球时弄伤了左膝。

膝部、裤膝

There was a hole in the knee of his jeans.

他牛仔裤的膝部破了一个洞。

膝上、大腿上

The little boy fell asleep on his father's knee.

小男孩在爸爸的膝上睡著了。

用膝撞、膝击

He kneed his attacker in the stomach and ran away.

他用膝盖顶了攻击者的肚子，然后逃走。