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	illuviation ill will Illyria Illyrian illywhacker ilmenite ilmoran ILO Ilocano Iloilo secretion secretive secretively secretiveness secret list secretly secret men's business secretor secretory secret police secret sacred Secret Santa secret sauce secret service secret shopper

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