英文關鍵字
agricultural
agriculture
autumn
barley
bread
cereal
combine
combiner
corn
crop
cutting
day
dust
farm
field
flour
food
gold
golden
grain
growth
harvester
harvesting
industry
land
machine
nature
non
occupation
outdoors
plant
ripe
row
rural
rye
seed
sky
stem
straw
summer
sun
sunlight
urban
wheat
working
yellow