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African american participant raising hand, lecturer talking to audience during presentation in conference hall
African american lecturer talking to audience during seminar in conference hall and pointing on screen
Smiling african american lecturer talking to audience during seminar in conference hall and pointing on screen
Handsome speaker talking during seminar and pointing on screen in conference hall
Back view of participant raising hand, lecturer sitting on stage in conference hall
High angle view speaker sitting on stage during seminar in conference hall
Handsome speaker talking during seminar in conference hall and pointing on screen
African american lecturer talking to audience and gesturing during seminar in conference hall
High angle view speaker sitting on stage during seminar in conference hall and talking to multicultural audience
High angle view of lecturer looking at multiethnic audience during seminar in conference hall, participant raising hand
Handsome african american speaker leaning on podium tribune during seminar in conference hall
Back view of journalists with raised hands near happy bearded speaker
Happy speaker pointing with hand at journalist with raised hand
Handsome business coach pointing on board with pointer stick during training in hub
Back view of journalists near handsome african american speaker talking in microphones
Happy speaker looking at african american businessman talking and gesturing near journalists
Back view of journalists near bearded speaker talking near microphones
Back view of businesspeople sitting on chairs at training in hub
Back view of businesspeople sitting on chairs during training in hub