英文關鍵字
barley
bread
breadstuff
cereal
cereals
cleaning
contemplation
corn
crop
croup
desiccation
differentiation
division
farm
farming
flour
grade
grain
grains
granule
grinder
groats
judder
kernel
manufactory
mill
nutrition
oats
partition
plaiting
plant
quality
seed
segregation
separate
separation
shake
sieve
sift
sifting
survey
wheat
winnow
works