英文關鍵字
america
breeze
bright
destination
ecology
ecosystem
environment
field
flora
flower
forest
green
habitat
hill
landscape
meadow
mountain
national
natural
nature
outdoors
park
parkland
plant
prairie
pretty
scene
scenery
slope
sunny
sway
travel
usa
vegetation
view
wild
wilderness
wildflower
wind
wyoming
yellow
yellowstone