英文關鍵字
alpha
briefing
conference
debate
documents
empty
lecture
matte
mic
microphone
orator
paper
platform
podium
presentation
rostrum
seminar
speaker
speech
stage
stand
tribune
英文關鍵字
alpha
briefing
conference
debate
documents
empty
lecture
matte
mic
microphone
orator
paper
platform
podium
presentation
rostrum
seminar
speaker
speech
stage
stand
tribune