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Portrait of female student woman professor at flipchart discussing tasks expressing various opinions reasoning during university seminar. Critical thinking knowledge sharing process. People lifestyle

视  频 ID：  1108108731
版      权：  Alena Lom
视频长度：  0:10
横纵比率：  1.90:1
所属分类：  人物 建筑 
商业用途（模特授权书存在站酷海洛）
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授权授权书发票合同问题