英文關鍵字
big
hand
hold
move
monitor
empty
microphone
seminar
hall
chairs
business
meeting
sound
conference
voice
speech
object
room
foreground
single
event
focus
presentation
equipment
auditorium
indoors
communications
audio
convention
stage
government
education
seat
debate
row
assembly
talking
press
lecture
ceremony
performance
closeup
one
technology
electronic
talk
speak
podium