英文關鍵字
background
book
brother
casual
caucasian
childhood
children
class
college
computer
concept
education
family
female
fun
game
happy
home
homework
house
illustration
isolated
laptop
learn
learning
lesson
male
man
media
modern
notebook
online
people
person
room
school
sister
sitting
smartphone
social
student
study
studying
technology
textbook
toddler
together
university
white
young