英文關鍵字
educational
problem
upset
displeased
man
sitting
floor
studying
laptop
course
playing
guitar
chords
home
vertical
virtual
lesson
instrument
learning
video
online
desperate
digital
modern
technology
disappointment
frustrated
practicing
composer
emotion
muse
music
acoustic
string
people
person
adult
caucasian
guy
male
one
indoors