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Female young hispanic school math teacher, college tutor coach looking at webcam and talking in classroom giving virtual teaching remote class online lesson by zoom conference call on laptop computer.
Audience listens to the speech of the lecturer in the conference hall
Young woman qualified lecturer speaks to small audience of listeners and talks about trends in contemporary art. Professor-student interaction, productive learning
African american conference speaker coach talk to audience give presentation on flipchart to employees group, black trainer manager speaking training diverse corporate team at office meeting seminar

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