on one's knee

Hovering on or just below the knee has that beautiful kind of Gatsby sophistication,' she said. 'A pleat will hide a multitude of sins. If you get one that's fluid, it kind of skims over and creates an ideal silhouette.'

她说：“落在膝盖上或略低于膝盖会有盖茨比（Gatsby）式的精致优雅。褶皱可以掩盖很多缺陷。如果是流动的褶皱，就会有飘逸的感觉，打造出理想的身形。”

One morning I was putting a Band-Aid on a little girl's scraped knee.

和别的那些小学一样,这是个典型的学校,每天都会有许多学生在卫生所进进出出.

A hapless romeo gets down on one knee to ask his girlfriend to marry him, but she clumps him around the head with a busker's ukulele.

一名倒霉的男子单膝跪地向女友求婚，但是女友却用乐手的夏威夷四弦琴砸他的头。