英文關鍵字
teacher
man
explaining
singing
happy
student
music
playing
lesson
person
education
musician
young
art
slow
motion
sound
caucasian
learning
indoor
practicing
trainer
lifestyle
home
artist
composer
song
player
living
room
apartment
coach
tutor
explanation
looking
away
closeup
guitar
performer
online
concentrating
expression
gesturing
hand
violin
classroom
study
lecture
adult
talking
intelligent
conversation