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An old man and his grandchild using a tablet - Online communication digital device. A young child and his elderly grandfather browsing scrolling on a tablet - an electronic device leisure time g...

视  频 ID：  1084758031
版      权：  knot9.com
视频长度：  0:15
横纵比率：  16:9
所属分类：  人物 科技 
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