单词：roughen
音标：['rʌfәn] ；
v. (使)变粗糙
v. make rough or rougher
词型变化：过去分词 : roughened ; 过去式 : roughened ; 现在分词 : roughening ; 第三人称单数 : roughens ; 名词复数形式 : roughens
考试类型：[GRE]
考试类型：[GRE]
词性分布：
roughen的用法和样例：
例句
- Roughen the surface before applying the paint.先把表面弄毛糙再涂颜料。
经典引文
Its rude hair Roughens the wind that lifts it.
出自：ShelleyThe nap of the cloth is roughened up by a brush.
出自：G. DoddThat girl's..nature seemed to roughen itself against seeing us so bound up in Pet.
出自：refl.