英文關鍵字
beautiful
bench
boys
break
cellphone
cheerful
child
childhood
children
classmates
corridor
development
education
female
friends
friendship
fun
gadget
girls
grade
group
hanging
happy
having
indoor
indoors
junior
kids
mobile
people
phone
portrait
preteen
pupil
school
schoolboys
schoolchildren
schoolgirls
schoolkids
self
selfie
sit
smartphone
smiling
studying
taking
technology
young