英文關鍵字
aerial
aeroplane
agricultural
agriculture
agronomy
air
aircraft
airplane
arabia
arabic
arid
aviation
center
circle
circles
circular
desert
desiccated
dried
dry
east
ecology
environment
farm
farming
farmland
field
flight
fly
flying
growing
high
horizon
irrigated
irrigation
landscape
middle
nature
pivot
plane
rural
saudi
system
technology
transportation
travel
view
water
window
wing