4K Bald doctor in white coat holding badge introduces himself during hospital seminar lecturer greets medical staff and residents 影视素材 Bald doctor in white coat holding badge introduces himself during hospital seminar lecturer greets medical staff and residents 影视素材
4K Group doctors and interns in coats attending hospital lecture lecturer explains medical diagrams mri scans while staff raise hands 股票视频 Group doctors and interns in coats attending hospital lecture lecturer explains medical diagrams mri scans while staff raise hands 股票视频
4K Doctors applauding during medical seminar in hospital office group of and staff white coats a presentation professional training 股票视频 Doctors applauding during medical seminar in hospital office group of and staff white coats a presentation professional training 股票视频
HD 垂直视频。医学教育。在线讲座。身穿白大褂的专业医生阅读书籍，在虚拟课程中讲解信息，坐在办公室里 股票视频 垂直视频。医学教育。在线讲座。身穿白大褂的专业医生阅读书籍，在虚拟课程中讲解信息，坐在办公室里 股票视频
HD 垂直视频。医学教师。医生讲座。医疗网络研讨会。一位聪明的教授在现代工作场所的在线课程中解释科学书籍的信息 股票视频 垂直视频。医学教师。医生讲座。医疗网络研讨会。一位聪明的教授在现代工作场所的在线课程中解释科学书籍的信息 股票视频
登录 
