英文關鍵字
aqua
aquatic
audio
basin
beautiful
brook
brooklet
cascade
cataract
clean
cleanness
climber
cold
creek
creeper
down
drain
dripple
ecology
environment
falls
flood
flow
flowing
force
jet
lichen
moist
mountain
natural
plant
purity
purl
pylypets
river
rivulet
run
sizzle
sound
spout
spring
stone
stream
streamlet
tiny
trickle
water
waterfall
wet
white