英文關鍵字
bag
bench
benches
board
boy
caucasian
chat
childhood
children
class
classmates
corridor
education
female
friends
friendship
fun
girl
girls
greeting
group
hall
happiness
indoor
joy
kids
laugh
male
people
portrait
preadolescence
pretty
pupil
pupils
school
schoolchildren
schoolgirls
schooling
sitting
slate
stack
study
studying
together