英文關鍵字
age
attention
book
boy
busy
candid
caucasian
cheerful
child
childhood
closeup
concentration
cute
education
elementary
examination
fun
hands
home
homework
human
interior
kid
learning
one
paper
pencil
people
person
portrait
prepare
pupil
reading
school
schoolboy
serious
sitting
student
study
studying
teenagers
textbook
writing
years
youth