And they may experience pain in joints such as the elbow or knee.

VOA: special.2009.05.26

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

"When we do a knee replacement, we remove one or sometimes both of the cruciate ligaments - which are the ligaments in the center of the knee.

VOA: standard.2010.08.11

Today,that is not enough any more." "When you want to buy the latest it bag, you also want to know how it is produced And that is the biggest change that we have seen in our business since the hem-lengths went below the knee."

VOA: standard.2010.01.31