英文關鍵字
medium
group
of
people
child
boy
male
caucasian
asian
girl
female
black
young
adult
woman
mixedrace
animation
graph
changing
number
close
african
american
raising
hand
classroom
digital
composite
multiple
exposure
report
business
school
growth
education
concept
chart
diagram
finance
data
financial
study
class
investment
student
information
success
money
technology
stock
office
knowledge
college
market