grittiness

例句：

1. 1.The surface of the rock is very gritty.
   这块岩石的表面非常粗糙。
2. 2.The road was very gritty to walk on.
   这条路走起来非常粗糙。
3. 3. The texture of the fabric is very gritty.
   这种布料的质地非常粗糙。