粗

例句：

1. 1. The material isvery rough and hard to work with.
   这种材料非常粗糙，难以加工。
2. 2. The painton the wall is so thick that it's almost impossible to clean off.
   墙上的油漆太厚了，几乎不可能擦掉。
3. 3. Themeat was too coarse for mytaste.
   这肉太粗糙了，不合我的口味。