英文關鍵字
and
bank
basin
blur
boulder
bubbles
cascade
channel
cleared
concrete
construction
create
creek
ditch
down
drain
drainage
environmental
flow
flowing
foamy
from
humidity
infrastructure
level
mineral
motion
noise
orange
outflow
oxide
pattern
pipe
plastic
protection
rain
rainwater
reeds
reflection
rough
running
sediment
smooth
sound
splash
splashing
spray
stone
stream
system
the
tube
water
waterfall
waterway
waves
wet