英文關鍵字
review
left
right
seminar
row
business
armchair
conference
meeting
indoors
ceremony
hall
communications
room
center
empty
convention
auditorium
chair
education
lecture
diminishing
perspective
light
university
vanishing
absence
learning
inside
information
theater
architecture
abstract
equipment
technology
exhibition
concert
theatrical
music
podium
event
congress
classroom
decisions
group
wedding
optical
amphitheatre
numbers