He suffered a kick to the knee.

他的膝盖被踢了一脚。

《柯林斯英汉双解大词典》

These jeans are torn at the knee.

这牛仔裤膝盖那儿破了。

《牛津词典》

He was shot in the back of the knee.

他被子弹击中了腘窝。

《牛津词典》

Mr.Heppner had his own leg tied back so that a wooden leg could be attached at the knee.

VOA: special.2010.06.11

If you tap somebody on the knee, your leg will jump out.

如果你轻击某人的膝盖,小腿就会弹出去

耶鲁公开课 - 心理学导论课程节选

I was neither at the hot gates Nor fought in the warm rain Nor knee deep in the salt marsh, heaving a cutlass, Bitten by flies, fought.

我未曾到过火热的城门,也未曾在暖雨中作战,更未曾在没膝的盐沼里挥舞弯刀，挨着飞蝇的叮咬，苦战。

耶鲁公开课 - 1945年后的美国小说课程节选

In another cubicle a patient is being treated for a bullet through the knee.

BBC: How Los Angeles surgeons cope in the gang war zone

Andrews is burying himself in work--like patching up the knee of Sacramento Kings star Chris Webber.

FORBES: Magazine Article

Mr. Assefa lost his leg above the knee in a train accident early last year.

WSJ: Boston Marathon Amputees Face New Reality