英文關鍵字
medium
group
of
people
child
boy
male
caucasian
mixedrace
girl
female
black
animation
connected
dot
graph
icon
diverse
student
writing
exam
classroom
digital
composite
multiple
exposure
report
business
education
communication
childhood
concept
school
internet
study
chart
sign
symbol
technology
computer
information
learning
college
university
data
studying
knowledge
web
class
office