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4K - Ultra HD - Close up of a businessman working concentrated at night in his office with Tablet PC touch screen interface - smooth tracking shot (shot on RED)

视  频 ID：  11221955
版      权：  Alexander Kirch
视频长度：  0:13
横纵比率：  16:9
所属分类：  科技 物体 
商业用途（模特授权书存在站酷海洛）
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