英文關鍵字
aerial
airplane
ballast
baloon
board
bush
children
countrymen
countryside
earth
fly
forest
garden
grass
green
harvest
horizon
housewife
land
landing
landscape
light
money
nature
pilot
plant
plot
ray
rest
rise
road
roof
russian
sky
small
sportsman
sun
takeoff
town
travel
tree
village
villager
weather
weekend
wind
work