英文關鍵字
aerial
agricultural
agriculture
angle
background
beauty
blue
corn
country
crop
cultivation
day
equipment
farm
farming
farmland
field
flying
food
grain
green
growing
harvest
helicopter
high
horizon
irrigation
land
landscape
machine
motion
nature
non
over
pivot
plant
point
rural
scene
spray
sprinkler
summer
sunset
system
thresher
tranquil
urban
video
view
water
yellow