[ 第三人称单数 roughens 现在分词 roughening 过去式 roughened 过去分词 roughened ]
roughen edges 粗糙边缘 ; 粗拙边缘 ; 粗糙边沿
CE Roughen Edges 让边缘变粗糙 ; 让边沿变粗糙
machining roughen 机械加工粗化
Chemical Roughen 化学粗化
surface roughen 表面粗糙化处理
coarsen roughen 变粗糙
roughen n 变得粗糙
DE Roughen Edges 让边沿变粗糙
"roughen the surfaces so they will stick to each other"
以上来源于: WordNet
V-T If something has been roughened, its surface has become less smooth. 使···变粗糙 [usu passive]
...complexions that have been roughened by long periods in the hot sun.
...经长时间日晒变粗糙了的面容。
You'd better roughen the surface before applying the paint.
你最好先把表面弄毛糙再涂颜料。
These ingredients can cause bleeding under the nails, discolouration and can roughen the smooth texture of the nails.
这些成分可引起指甲下出血，变色，甚至使原本质地光滑的指甲变得粗糙。
Then, it removes dead surface skin that can dry, roughen and dull your complexion.
去除皮肤表层导致皮肤干燥、粗糙和晦暗的死皮细胞。
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