英文關鍵字
active
answer
assignment
audio
call
caucasian
child
childhood
children
class
computer
desk
education
elementary
flat
girl
hand
headphone
home
hometask
internet
joyful
junior
kid
knowledge
laptop
learn
lecture
lesson
little
math
mathematics
online
pen
primary
process
raise
school
schoolchildren
stationery
student
study
subject
supplies
table
task
teacher
train
video
watch