英文關鍵字
raised
hand
question
statement
speak
ask
attract
attention
gesture
actively
education
learning
classroom
people
discussion
listening
seminar
man
asking
meeting
talking
communication
concentration
confidence
teaching
curiosity
togetherness
colleague
conference
excitement
gesturing
ideas
looking
closeup
participant
assistance
event
candid
debate
caucasian
senior
vertical