英文關鍵字
beautiful
beauty
biosphere
blue
calm
clear
ecology
ecosystem
environment
flora
flower
forest
fresh
garden
grass
green
growth
insect
lake
landscape
landscapes
leaf
life
meadow
moss
mountain
national
natural
nature
outdoor
park
pine
plant
red
reserve
river
rock
scenic
sky
summer
travel
tree
unesco
vegetation
water
wild
wildlife
wind
yard
yellow