academy
attention
audience
auditorium
back
briefing
business
conference
congress
corporate
discussion
event
group
hall
head
institute
instructor
knowledge
lecture
lesson
listen
listeners
manager
meeting
participant
participants
people
presentation
professional
screen
seminar
session
speaker
speech
student
study
symposium
talk
teach
training
university
workshop
定額
Conference participants, events, presentations, listen to the speaker sitting in chairs. Rear view of men and women during the event. Further education for businessmen and managers. Soft focus.の素材 [FY310141545728]
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