英文關鍵字
agricultural
agriculture
barley
campaign
carrier
cereal
cereals
combine
corn
corny
crop
crops
ear
earth
economy
farm
farming
field
footage
gathering
grain
harvest
harvester
harvesting
husbandry
implement
industry
land
loading
machine
machinery
movie
reap
reaping
rural
rye
summer
tractor
transfer
transportation
truck
video
wheat
with
working
yield