常见例句双语例句Study of how to clean the glass, maintain the stainless steel & copper ware and how to maintain and clean the marble, granite and ceramic tiles.学习怎样清洁玻璃，保养不锈钢和铜器，并且学习怎样清洁和保养大理石，石榴石和瓷砖。 返回 graniteware