英文關鍵字
and
beautiful
beauty
biology
brook
canyon
cascade
clean
creek
drinking
drops
ecology
environment
flash
flood
flow
flux
foam
forest
fresh
from
idyllic
landscape
majestic
moss
mountain
natural
nature
overfall
pure
purl
riffle
river
rock
spray
stone
stones
stream
the
tide
water
waterfall