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。
Cold weather roughens your skin.
天气寒冷,皮肤变得粗糙。
First, it roughens the texture of the match head, helping to create friction wherever you strike it.
首先,它使火柴头的质感变得粗糙,有助于产生摩擦力,无论你在什么地方划火柴。
Frosted Plastic Is Plastic Which Has Been Rendered Opaque Through a Process Which Roughens Or Obscures The Clear Surface Of The Class.
磨砂塑料是塑料已经通过一个过程,呈现Roughens或掩盖了阶级清晰表面不透明。
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