英文關鍵字
bank
between
block
blur
breakers
chute
deep
dirty
down
fall
fast
flow
fluid
foam
foaming
foamy
grimy
hewed
into
level
liquid
mirror
move
movement
muddy
nature
orange
overflow
overfull
polution
ripple
river
riverbed
rocks
rubbish
rushing
sandsone
sandstone
sediments
silk
soiled
spillway
spry
stony
stream
surface
wall
water
wave
weir
whirlpool
white