microphone the foreground seminar presentation conference room full empty seats red color hall for workshops |
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| navigate by keyword : audience auditorium broadcast business center chair chairs classroom communication conference congress convention corporate education empty event furniture hall hotel indoors interior learning lecture listen meeting microphone modern nobody office presentation presenter public room scene screen seat seating seats seminar show speaker stage table talk teach training university view workshop |
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| Seminar presentation. Conference room full of empty seats. Red color. Auditorium for workshops and seminars. |
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