英文關鍵字
agricultural
agriculture
agronomy
barley
combine
crop
cultivate
dirt
ecology
farm
farming
field
food
formation
grain
growth
harvest
harvester
harvesting
industry
johndere
land
machine
machinery
nobody
oil
plants
ripe
rural
soil
stem
sunflower
sunny
tractor
trailer
transport
vehicle
view
work
yellow