英文關鍵字
america
american
animal
aurochs
background
beef
big
bison
brown
buffalo
bull
close
cold
europe
european
field
flower
forest
forrest
fur
grass
heard
herbivore
horns
isolated
landscape
large
male
mammal
meadow
national
nature
north
outdoors
park
poland
portrait
power
prairie
travel
tree
usa
white
wild
wildlife
wyoming
yellowstone