4K 一位印度教师在课堂上走向一位举手的青少年，他身体前倾，指着笔记本电脑，而他的同伴正在使用它 影视素材 一位印度教师在课堂上走向一位举手的青少年，他身体前倾，指着笔记本电脑，而他的同伴正在使用它 影视素材
4K Female teacher walking in as male child raising hand leaning in classroom explaining laptop female teacher walking in as male 股票视频 Female teacher walking in as male child raising hand leaning in classroom explaining laptop female teacher walking in as male 股票视频
4K African american woman teacher walking class noticing students on devices reading tablet smiling classroom education learning 股票录像 African american woman teacher walking class noticing students on devices reading tablet smiling classroom education learning 股票录像
4K African american female teacher walking down center aisle in classroom checking tablets and laptop african american female teacher 股票视频 African american female teacher walking down center aisle in classroom checking tablets and laptop african american female teacher 股票视频
4K African american teacher walking in classroom scanning tablets selecting raised hand to get answers african american teacher 股票视频 African american teacher walking in classroom scanning tablets selecting raised hand to get answers african american teacher 股票视频
4K African teacher walking in class urging teenage female donning vr headset reaching exploring lesson african teacher walking in 影视素材 African teacher walking in class urging teenage female donning vr headset reaching exploring lesson african teacher walking in 影视素材
4K Female teacher walking classroom aisle turning to child raising pointing correcting in peach top educator pupil desks monitor 股票录像 Female teacher walking classroom aisle turning to child raising pointing correcting in peach top educator pupil desks monitor 股票录像
4K Teacher walking classroom toward student popping bubbles on head high fiving boosting engagement educator student interaction 股票视频 Teacher walking classroom toward student popping bubbles on head high fiving boosting engagement educator student interaction 股票视频
4K Students and teacher walking corridor scanning smartphone activating blue data overlay with graphs classroom education school 股票视频 Students and teacher walking corridor scanning smartphone activating blue data overlay with graphs classroom education school 股票视频
4K 老师监督孩子们写考试坐在课桌前，特写镜头。女教育家拿着书在教室里走动。女导师看着小学生解决问题。小学教育概念 股票视频 老师监督孩子们写考试坐在课桌前，特写镜头。女教育家拿着书在教室里走动。女导师看着小学生解决问题。小学教育概念 股票视频
登录 
