rough,粗糙的，-en,使。

1. What has roughen'ed your temper?

可什么东西惹恼了你了?

来自英汉文学 - 双城记

2. Roughen the surface before applying the paint.

先把表面弄毛糙再涂颜料.

来自辞典例句

3. You'd better roughen the surface before applying the paint.

你最好先把表面弄毛糙再涂颜料.

来自互联网

4. Before painting the wood, roughen the surface with sandpaper.

油漆木器前, 先用砂低把表面磨毛糙.

来自互联网

5. As a conventional surface process, grit blasting can be used to clean and roughen metal surface.

喷砂是常用的金属表面处理方法, 可起毛化和清洁作用,如作为热喷涂涂层的预处理工艺.

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