英文關鍵字
abstract
america
american
animation
area
atlas
border
boundary
capital
cartography
cartoon
concept
continent
contour
country
education
element
geography
government
graphic
green
icon
illustration
isolate
land
landmark
map
modern
motion
nation
national
north
ocean
outline
region
shape
south
state
symbol
territory
texture
travel
united
us
usa
washington
west
white