cu selective focus boy (6-7) using abacus in classroom / jersey city, new jersey state, usa - 計數儀器 個影片檔及 b 捲影像00:07
cu selective focus boy (6-7) using abacus in classroom / jersey city, new jersey state, usa - 計數儀器 個影片檔及 b 捲影像00:25
cu selective focus boy (6-7) using abacus in classroom / jersey city, new jersey state, usa - 計數儀器 個影片檔及 b 捲影像00:08
ms pan teacher leaning and talking to two boys (6-7) writing in classroom / jersey city, new jersey state, usa - 計數儀器 個影片檔及 b 捲影像00:16
workers at muangthai capital pcl branch and office in bangkok, thailand on tuesday, june 5, 2018. - 計數儀器 個影片檔及 b 捲影像00:19