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Video footage of a smart female elementary school student thinks before answer a math problem on the blackboard in the classroom. Shot in 4k resolution

视  频 ID:  1008461389
版      权:  Creativa Images
视频长度:  0:19
横纵比率:  1.90:1
所属分类:  教育 
商业用途(模特授权书存在站酷海洛)

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