lecturer tells and shows presentation on the scene to packed house of listeners - close up
Woman speaking in speaker at podium in auditorium 4k
Businessman speaking at podium on stage in auditorium 4k
Asian businesswoman speaking at business seminar in auditorium 4k
View from behind the podium at an awards gala speech talking public speaking
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Asian businesswoman speaking on stage in auditorium 4k
Business people meeting animated icons set of teamwork partnership contract handshake leadership and training available in 4k UHD FullHD and HD 3d video animation footage
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A man with a microphone refers to the audience. Male person with microphone indicating with index finger forward. Public speaking concept.
Young business professional speaking at seminar in auditorium 4k
Young business professional speaking at seminar in auditorium (4k)
a high school student doing public speaking using a microphone during a competition