商务会议上观众举手积极参与的场景。它展示了与会者在研讨会期间的参与和互动。
A scene at a business conference where the audience actively participates by raising their hands. It showcases the engagement and interaction between attendees during a seminar.
下载 HD Ready 720p视频来自: https://mixkit.co/free-stock-video/audience-raise-hands-at-business-conference-13192/