英文關鍵字
agricultural
agriculture
autumn
carbohydrates
carbs
cattle
cob
combine
corn
crop
crops
farm
farmer
farmland
feed
food
fructose
grain
harvest
harvester
harvesting
high
house
industry
kernals
load
machinery
maize
plowing
ranch
southern
stalk
states
sugar
syrup
till
tilling
tractor
truck
united
worker