1、Roughen the surface before applying the paint.
先把表面弄毛糙再涂顏料。

2、Before painting the wood, roughen the surface with sandpaper.
油漆木器前， 先用砂低把表面磨毛糙。

3、By sanding the split leather surface to roughen it up.
是通過打磨分割層皮革的表面，使它變粗糙而得到的。

4、You'd better roughen the surface before applying the paint.
你最好先把表面弄毛糙再涂顏料。

5、Short bits of rope yarn inserted into canvas to roughen the surface.
繩屑用于使面變得粗糙而加入帆布中的短線頭

6、You will then need to roughen the surfaces to prepare them to hold the materials.
你便要他們準備表面粗糙的材料進行。

7、Then, it removes dead surface skin that can dry, roughen and dull your complexion.
去除皮膚表層導致皮膚干燥、粗糙和晦暗的死皮細胞。

roughen翻譯