英文關鍵字
earth
world
globe
home
house
care
ecology
conservation
save
help
roof
planet
protection
global
map
concept
sphere
abstract
building
continent
idea
environment
eco
residential
nature
green
drawn
rotation
greenboard
mainland
land
chalk
chalkboard
turn
geography
hand
drawing
sketch
ocean
day
environmental
life
peace
safety
humanity
education
class
safe
protect