business conference concept and ideas lecturer speaking front the large group people |
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| navigate by keyword : adult attention attentive audience auditorium backs blur busy coaching colorful conference congress crowd event female foreground forum group hall indoors information interested knowledge learn lecture lecturer listeners listening male many meeting men participants people person presentation public rear room row seated seminar sit speaker training view watching woman |
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| Back View of Man Listening to Professional Lecturer Speaking In front of the People. Vertical Composition |
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