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Doing Their Best to Ensure Your Health. Shot of a Young Male Researcher Explaining Something to His Senior Female Colleague While Holding a Blood Test Tube

视  频 ID：  23029354
版      权：  Oleksandr Rzhanitsyn
视频长度：  0:07
横纵比率：  16:9
所属分类：  科技 医疗 
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