相关单词近义词 supplement 增刊, addition 增加, attachment 附件, addendum 补遗, adjunct 附属物, appendage 附加物, frill 衣饰上的绉边..., extra 额外的, supplementary 补充的, accompanying 陪伴的, additional 附加的, optional 任选的, auxiliary 助动词, peripheral 外围的, accessory 附件, improver 改良者, appurtenance 附带权利临近词add, Addow 返回 add on