roughing the angles

例句：

1. 1.The car was roughed up by the roadside rocks.
   汽车被路边的石头刮伤了。
2. 2.The workman roughed up the metal with a hammer.
   工人用锤子把金属粗制滥造。
3. 3. The paint on the walls is roughing up quickly.
   墙上的油漆正在迅速变糙。