roughness cavitation

例句：

1. 1. Thetexture of the material is very rough.
   这种材料的质地非常粗糙。
2. 2. The car's paint job has a lot of roughness to it.
   这辆车的油漆工作有很多粗糙的地方。
3. 3. The rocks on the beach are quite rough.
   海滩上的石头相当粗糙。