英语词汇“rottenstone”是什么意思，“rottenstone”的读音、用法及例句翻译-烛光网

词汇	rottenstone
释义	rot·ten·stone AHD[rŏtʹn-stōn'] D.J.[ˈrɒtnˌstəʊn]K.K.[ˈrɑtņˌston]n.（名词） A soft, decomposed limestone, used in powder form as a polishing material.擦光石：一种粉末可作磨光材料的柔软的风化石灰石
随便看	different different differentia differentiable differentiae differentiae differential differential analyzer differential calculus differential coefficient differential equation differential gear differential gearing differential rate differentials differential windlass differentiate differentiated differentiates differentiating differentiation differentiations differing differs difficult

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