英文關鍵字
foaming
mountain
stream
flow
quickly
rocky
terrain
white
water
rapid
greenery
bank
nature
moss
river
landscape
outdoor
wilderness
scenic
current
stone
boulder
foliage
flora
environment
beauty
wet
fresh
clean
pure
creek
brook
cascade
torrent
whitewater
splash
spray
rush
streambed
riverbed
bedrock
geology
ecology
hydrology
aquatic
riparian
summer
background
motion
pano