英文關鍵字
blowing
botany
conservation
coolness
daylight
earth
ecology
environment
environmental
field
freedom
freshness
grass
grassland
green
greens
growth
harmony
herbs
nature
open
outdoors
outside
oxygen
pasture
pastureland
people
plain
plants
pollution
protection
relaxation
reserve
rest
spring
springtime
summer
sways
swing
tilt
view
wild
wind