英文關鍵字
american
autumn
backpack
bag
beautiful
boy
brain
carry
child
classroom
clothes
college
communication
conversation
courting
education
first
friends
friendship
from
girl
go
green
heavy
help
helps
home
knowledge
lawns
learning
lightcolored
love
multiethnic
nation
outdoors
preschooler
private
pupil
school
sector
spring
student
studying
takes
teenager
teenagers
together
university
walking