英文關鍵字
adventure
bush
concept
country
countryside
dirt
drive
eco
ecology
ecosystem
empty
environment
farm
field
grass
green
image
journey
land
landscape
life
national
natural
nature
nobody
outdoor
outdoors
path
people
road
rural
scene
scenery
scenic
season
sky
soil
trail
travel
tree
trees
trekking
trip
unsure
walking
way
wild
wood
woods