4K African man showing tablet guiding youth girl writing in notebook with pencil at home high five mentor student learning education 股票视频 African man showing tablet guiding youth girl writing in notebook with pencil at home high five mentor student learning education 股票视频
4K Child girl writing in notebook at desk glancing laptop speaking into headset answering question education learning study 股票录像 Child girl writing in notebook at desk glancing laptop speaking into headset answering question education learning study 股票录像
4K 小女孩在她的粉色私人日记本上写着心事。专注的青少年在书桌前笔记本上做笔记，一个宁静的独处时刻 股票视频 小女孩在她的粉色私人日记本上写着心事。专注的青少年在书桌前笔记本上做笔记，一个宁静的独处时刻 股票视频
4K Freelancer woman talking smartphone working pink laptop cozy living room sofa asian girl writing notes notebook multitasking phone 影视素材 Freelancer woman talking smartphone working pink laptop cozy living room sofa asian girl writing notes notebook multitasking phone 影视素材
4K 专注的 Caucasian 青少年女孩在教室里写作业，准备考试，专注的孩子，学生在书桌上做笔记，学习课程，教育，图书馆。高质量 4k 视频 股票录像 专注的 Caucasian 青少年女孩在教室里写作业，准备考试，专注的孩子，学生在书桌上做笔记，学习课程，教育，图书馆。高质量 4k 视频 股票录像
4K Top view student girl writing university auditorium looking at camera smiling hispanic latina woman female at table top view 股票视频 Top view student girl writing university auditorium looking at camera smiling hispanic latina woman female at table top view 股票视频
4K Focused african american student girl writing in textbook preparing for exams female woman studying write knowledge educate 影视素材 Focused african american student girl writing in textbook preparing for exams female woman studying write knowledge educate 影视素材
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