单词	roughen
释义	roughen /ˈrʌf(ə)n / verb Make or become rough: [with object]: the wind was roughening the surface of the river [no object]: his voice roughened... The coarser the powder, the more the grains roughen up the surface for more of a textured finish. Virginia's voice had roughened to an angry growl. Etching the parts roughens the surface for better mechanical adhesion of the EN to the magnesium. Rhymes toughen
随便看	ronquil Ronsardian Ronson rontgen therapy Ronuk roo roo bar roocoocooing roocooing roocoorooing roocus rood rood altar rood arch rood-beam rood cloth Rood Day roodebekje roode els roodehout rood els rood elze Rood fair rood goose rood land

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