英文關鍵字
alley
autumn
backpack
blackboard
book
boy
building
casual
caucasian
cheerful
child
childhood
city
clever
clock
concept
cute
education
elementary
face
friendship
fun
grade
happiness
holding
holiday
intelligent
motion
nerd
notebook
outdoors
park
people
person
portrait
school
schoolboy
september
smile
students
study
think
time
uniform
urban
urgency
young