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Stack of books one line art animation hand drawn pile of notebooks continuous contour motion.Education studying concept outline festive knowledge day video minimalist design. 4k movie

视  频 ID：  1105534057
版      权：  Smirnova.olga
视频长度：  0:10
横纵比率：  1.90:1
所属分类：  教育 标识 
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