英文關鍵字
away
back
backpack
bag
behind
boy
break
cheerful
child
childhood
children
concepts
education
elementary
embracing
emotions
ethnic
female
footage
friend
friends
friendship
girl
girls
grass
green
group
happiness
happy
kids
lifestyle
outdoors
outside
people
private
school
schoolboy
slow
smiling
student
talking
teenagers
three
together
walk
walking
young
youth