rub up1.■擦拭；擦亮：He rubbed up the silverware with a clean dry cloth.他用一块干净的干布将银器擦亮。2.■[口语]温习，复习；提高：She must rub up her English for the midterm examination.她必须复习一下英语以便应付期中测验。3.■[口语]唤起(记忆)：I must rub up my memory and recall where I met him.我得好好想想我是在什么地方遇见的他。4.■把(颜料等)调成糊状5.■[俚语]手淫