abrasion of coin

例句：

1. 1. The old car's paint is starting to show signsof abrasion.
   这辆旧车的车漆开始出现磨损的迹象。
2. 2. The metalsurface was severely abrasioned bythe sandpaper.
   金属表面被砂纸严重擦伤了。
3. 3. The shoes were badly abrasioned from walking in the mud.
   鞋子因为走在泥里而严重磨损了。