在下头烂污泥浆齐膝的地方，扔在泥坑里，水坑里。

They are put down below, where the mud is up to your knees, in the damp places.

youdao

当你加深双膝的弯曲幅度是，保持头顶到尾骨一条直线.

As you deepen the bend of the knees, maintain a straight line from the top of your head to your tailbone.

youdao

以弓箭步姿势，将你的右脚放在一个齐膝的长凳或台阶上，双手抚右膝，保持左腿伸直。

In a lunge position, place your right foot on a bench or a step at knee height, and place both hands, palms down, on your right knee, keeping your left leg straight.

youdao

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