duopolyglossary / DUOPOLY duopoly (d[y]oo-op-[schwa]-lee). A market in which there are only two sellers of a product. 词条贡献者 双语律师William,国内知名法学院金融专业,擅长翻译各类与投资基金、投资顾问及金融衍生工具相关的法律文件。