英文關鍵字
backpack
bag
boy
building
caucasian
child
childhood
children
education
elementary
energetic
friends
front
knowledge
learning
outdoors
outside
part
people
person
primarypupil
school
schoolchildren
space
students
time
uniform
vacation
joy
schoolyard
completion
prank
gladness
schoolgirl
schoolboy
book
textbook
conversation
girl
classmate
friendship
together
couple
two
go