英文關鍵字
assignment
background
blank
boy
call
caucasian
child
childhood
chromakey
class
computer
design
desk
distance
education
green
home
homework
internet
junior
learn
lecture
lesson
light
living
notebook
online
part
picture
preteen
primary
room
school
schoolboy
schoolchildren
screen
stationery
student
study
tablet
take
task
teacher
technology
ten
tween
video
wall
watch
year