1·The boy fell and scraped the skin off his knee.
那男孩跌倒了，抢掉了膝盖上的皮。
—— 《新英汉大辞典》
2·I've rubbed the skin off.
我把皮肤擦破了。
3·Take the skin off before you eat it.
吃之前先把皮去掉。
4·She's scraped the skin off her elbow.
她把胳膊肘的皮肤擦破了。
5·She has scraped the skin off her elbow.
她把胳膊肘的皮肤擦破了。
6·How did you rub the skin off your knees?
你膝盖上的皮是怎样擦掉的？
7·I then burned two layers of skin off my ear.
然后我就把我的耳朵烫掉了两层皮。
8·Take the skin off before eating chicken or turkey.
在吃鸡或火鸡时先把皮去掉。
9·I scraped the skin off the vegetables with a knife.
我用小刀刮去蔬菜的皮。
10·It was better than letting her scratch all the skin off her arms.
总比让她把她手臂的皮肤抓破好。