英文關鍵字
back
backview
blackboard
board
boy
calculating
child
class
classroom
clever
close
closeup
count
cute
development
education
elementary
equation
eyeglass
formula
genius
junior
kid
knowledge
learn
learning
lesson
little
look
looking
male
math
mathematics
primary
pupil
result
school
schoolboy
schoolchild
schoolkid
smart
solve
student
study
studying
task
thinking
up
view