OrperhapsUpickeduponitwhilelookingthroughthepicturesinyoursocialmedia中upon为何连用RTOrperhapsyoupickeduponitwhilelookingthroughthepicturesinyoursocialmedia中up和on为何连用，不是两个介词吗？求分析

Question

Or perhaps U picked up on it while looking through the pictures in your social media中upon为何连用
RTOr perhaps you picked up on it while looking through the pictures in your social media中up和on为何连用，不是两个介词吗？求分析一下！谢！

Answer 1

似乎是软件使用的说明:不全不明白是什么软件或者说的是什么东西
我只好猜了：
picked up（and drop） on it while looking through，是否是省略了and drop