英文關鍵字
agriculture
autumn
business
cereal
combine
corn
crop
drop
dry
dust
equipment
falling
farm
farming
food
fresh
gather
gathering
grain
grown
harvest
harvester
harvesting
healthy
industrial
industry
kernels
land
loader
loading
machine
machinery
maize
manufacturing
monoculture
nature
nutrition
pouring
production
ripe
season
silo
soil
technology
tractor
truck
unloading
wheat
working
yellow