英文關鍵字
agriculture
black
buckwheat
cereal
concept
conflict
crisis
crop
crumpled
depression
disaster
economy
export
falling
famine
farm
farming
food
global
gold
grain
grains
grunge
harvest
harvesting
hunger
import
motion
nature
old
paper
poverty
price
problem
ripe
seed
slow
supply
surface
war
wrinkled
yellow