英文關鍵字
aquatic
background
brook
cascade
clean
clear
creek
day
ecology
environment
fast
flow
flowing
fluid
fresh
freshwater
green
israel
limpid
motion
national
natural
nature
nobody
outdoor
park
parkn
plant
rapid
rippled
river
rock
rocky
scenery
scenic
slippery
speed
splash
splashing
stone
stream
surface
texture
water
watercourse
waterfall
wave
wet
wild