4K 一名学生，一个女学生正在家里的桌子旁进行自学。孩子在写作业。一个青少年通过在笔记本上记笔记来完成作业。远程学习的概念 影视素材 一名学生，一个女学生正在家里的桌子旁进行自学。孩子在写作业。一个青少年通过在笔记本上记笔记来完成作业。远程学习的概念 影视素材
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4K Roll out the dough make cookies cook from dough at home sweet food on banking tray roll out the dough make cookies cook from dough 股票视频 Roll out the dough make cookies cook from dough at home sweet food on banking tray roll out the dough make cookies cook from dough 股票视频
4K Teeth with braces smile close up mouth speaking teenager face teeth with braces smile close up mouth speaking teenager face 股票视频 Teeth with braces smile close up mouth speaking teenager face teeth with braces smile close up mouth speaking teenager face 股票视频
4K Elderly woman plays bingo grandmother with family playing board games at home lotto christmas time together man 股票录像 Elderly woman plays bingo grandmother with family playing board games at home lotto christmas time together man 股票录像
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