英文關鍵字
afroamerican
back
backpack
bag
beautiful
boy
caucasian
cheerful
child
childhood
children
classmate
colorful
concept
day
education
elementary
friends
girl
group
happy
kid
knowledge
learn
lifestyle
mixedracial
outdoors
person
primary
pupil
school
schoolboy
schoolchildren
schoolgirl
slowmotion
smart
street
study
teen
teenage
together
view
walk
young
youngster