英文關鍵字
academic
architecture
auditorium
background
beautiful
boardroom
building
business
campus
chairs
classroom
college
conference
corporate
corridor
design
desk
details
education
empty
events
floor
furniture
grass
hall
indoor
inside
knowledge
large
lawn
learn
lecture
modern
nature
nobody
office
organization
outdoor
park
public
reception
room
school
seating
seminar
small
stairs
students
table
training
university
vacation