英文關鍵字
bison
grazes
green
grass
reserve
endangered
species
population
recovery
rebirth
ancient
animal
cow
farm
nature
mammal
field
brown
pasture
meadow
cattle
bull
livestock
wild
rural
agriculture
summer
foal
protection
breeding
care
freedom
domestication
protected
area
travel
reservation
outdoor
standing
forest
big
europe
park
wildlife
buffalo
wood
wilderness
power
natural
fence
walking