Ключевые слова: adult, appointment, audience, auditorium, background, blur, blurred, blurry, business, businessman, center, closeup, coaching, communication, conference, congress, convention, cooperation, corporate, discussion, educate, education, equipment, event, finance, group, hall, indoors, interior, learn, learning, lecture, man, manager, meeting, modern, people, person, presentation, professional, public, room, screen, seminar, show, speaker, speech, teaching, training, work,