英文關鍵字
cartoon
flat
animation
illustration
geography
education
lesson
study
school
globe
class
map
earth
classroom
knowledge
learn
world
travel
student
teacher
university
country
academic
2d
motion
graphic
scene
design
hd
video
background
animated
footage
style
view
loop
scenery
backdrop
banner
infographic
area
toon
art
space
dynamic
people
crowd
multiracial
diversity