英文關鍵字
aqua
beautiful
beauty
brook
cascade
clean
clear
creek
ecology
energy
environment
fall
fast
flow
flowing
forest
fresh
freshness
green
jet
landscape
moss
motion
natural
nature
outdoor
park
people
powerful
rapid
river
rock
rocky
scenery
season
small
splash
splashes
splashing
spray
spring
stone
stream
summer
tourism
travel
view
water
wet
wild