英文關鍵字
book
books
boy
carefree
caucasian
child
childhood
class
classroom
computer
concentration
cute
desk
development
diligent
doing
education
elementary
focused
friends
funny
girl
home
homework
intelligence
internet
kids
knowledge
learn
learning
lesson
lessons
library
online
person
phone
read
reading
school
schoolboy
schoolchild
schoolkid
screen
smart
smartphone
student
study
tablet
together
two