英文關鍵字
720
agricultural
agriculture
autumn
biogas
biomass
biopower
closeup
combine
corn
crop
cultivated
dust
dutch
energy
europe
fall
farm
farmer
farming
field
fodder
food
forage
grain
green
growing
harvest
harvester
harvesting
heat
land
landscape
leaf
machine
maize
nature
nobody
organic
outdoors
outside
plant
row
rural
season
seasonal
silage
tractor
yellow