英文關鍵字
teacher
man
explaining
talking
gesturing
singing
student
one
music
playing
lesson
person
education
musician
young
art
slow
motion
sound
caucasian
learning
indoor
practicing
home
artist
composer
player
living
room
apartment
coach
tutor
explanation
looking
away
closeup
guitar
performer
online
concentrating
expression
hand
classroom
study
lecture
adult
instrument
equipment
planning
piano
working
male
listening