英文關鍵字
above
aerial
air
background
beautiful
bird
branch
branches
clean
climate
day
dirty
ecology
ecosystem
environment
environmental
flora
forest
fresh
green
high
jungle
landscape
leaf
leaves
moss
mossy
mountain
mysterious
natural
nature
outdoor
park
pattern
plant
pollute
polluted
rainforest
season
top
travel
tree
trees
tropical
untouched
vegetation
view
wild
wildness
wood