从某种程度上说，他在为一种早期版本的套利基金做广告。
In a way, he was advertising an early version of an arbitrage fund.
youdao
挪动广告早期被定义为挪动数据应用的一种方式。
Mobile advertising was early identified as an application for mobile data.
应用推荐
模块上移
模块下移
不移动