大きな会場で行う講演会やセミナー風景のイメージ
Schlüsselwörter
stage,
rostrum,
stage,
microphone,
personal computer,
discourse,
workshop,
presentation,
audience,
lecturer,
teacher,
student,
researcher,
investigator,
meeting,
workshop,
training,
forum,
conference,
symposium,
seat,
hall,
lighting,
projector,
screen,
presentation,
bouquet,
preparation,
business
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