roughen

动词 roughen:

1. make rough or rougher

1. Roughen the surface before applying the paint.
   先把表面弄毛糙再涂颜料。

rough.en

v.tr.intr.（及物动词和不及物动词）
rough.ened,rough.en.ing,rough.ens
To make or become rough.
变粗糙，变毛糙：使变得粗糙或毛糙