Ключевые слова: adult, attention, audience, auditorium, background, briefing, business, businessman, businesswoman, center, communication, conference, congress, corporate, discussion, education, equipment, event, female, group, hall, indoor, interior, international, lecture, lecturer, manager, meeting, microphone, modern, new, people, person, presentation, professional, public, room, seat, seminar, speaker, speech, spokesman, spokeswoman, stage, standing, technology, training, woman, work, young,