擦破

Jack skinned his knee when he fell.

杰克跌倒时了皮。

I barked my shin on a tree stump.

我磕到了树桩上，胫部了皮。

The boy fell and scraped the skin off his knee.

这男孩摔了一跤, 了上的皮。

He skinned his knees when fell.

摔倒时了部的皮肤。

He boohooed when he skinned his knee.

当的时, 大声地哭了起来。

The bullet merely creased his shoulder.

子弹只不了肩部的皮肤。