英文關鍵字
africa
agriculture
animal
beef
black
bos
bovid
bovinae
bovine
breed
bull
calf
cattle
chain
country
countryside
cow
domestic
farm
farming
farmland
fauna
field
food
grass
graze
grazing
green
head
herd
hereford
inseminator
leash
livestock
mammal
meadow
meat
muscles
muscular
nature
outdoor
pasture
ranch
rural
south
summer
taurus
ungulate
white
wildlife