英文關鍵字
botany
concept
conditional
conservation
cut
defense
earth
eco
ecology
environ
environment
figure
foliage
forest
fresh
grass
green
grove
humanity
landscape
leaves
life
live
man
movement
nature
panorama
paper
park
people
planet
plant
population
protection
slow
symbol
symbolic
tree
trees
trunk
vegetation
video
village
young