网易旗下利用大数据技术提供移动互联网应用的子公司,过去8年,先后推出有道词典、有道翻译官、有道云笔记、惠惠网、有道推广、有道精品课、有道口语大师等系列产品。(NetEase's subsidiary of big data technology provides mobile Internet applications. In the past 8 years, it has launched products such as Youdao Dictionary, Youdao translation officer, Youdao note, Hui Hui network, Youdao promotion, Youdao excellent course and good oral master.)