英文關鍵字
child
girl
homework
problem
home
stress
education
difficult
book
one
person
elementary
studying
childhood
student
school
table
exhausted
reading
tired
sleepy
learning
head
young
sad
pupil
desk
indoor
lesson
notebook
writing
knowledge
textbook
caucasian
sitting
slow
motion
schoolgirl
kid
confused
unhappy
closeup
selective
focus
front
view
cute
little
bored
hand
laptop
classroom
alone