1. The wood was roughened to improve grip.
木材被处理得更粗糙以增加摩擦力。

2. The roughened surface helps prevent slipping.
粗糙的表面有助于防止滑倒。

3. Wind and sand roughened the stone over time.
风和沙子随着时间使石头表面变得粗糙。

4. The artist used tools to create a roughened texture.
艺术家用工具制作出粗糙的纹理。

A: Why is this metal surface roughened?
A：为什么这个金属表面被做得这么粗糙？

B: It is roughened to make it safer to hold.
B：它被处理成粗糙表面以便更安全地握持。

1) 表示表面被加工得不光滑

2) 描述材料因磨损变粗糙

3) 工业中常见的表面处理状态

1. 使表面变粗糙的状态

e.g.The roughened glass reduces glare.
粗化的玻璃可以减少眩光。

verb (past participle / adjective)

1. Made or made to become rough or uneven in texture or surface.