英文關鍵字
medium
group
of
people
mid
adult
woman
female
mixedrace
child
girl
boy
male
black
caucasian
animation
data
processing
happy
diverse
teacher
tablet
pupil
classroom
communication
technology
school
childhood
education
learning
digitally
generated
video
class
student
lesson
study
knowledge
studying
college
university
elementary
learn
digital
teaching
montage
kid
young
book
homework
children