英文關鍵字
background
because
blue
capacity
churning
concrete
dam
danger
dangerous
dike
drainage
drop
energy
excess
falling
falls
flood
flow
flowing
flows
forest
green
highn
hydro
lake
landscape
mountain
natural
nature
open
overflow
overflows
overfull
power
rapid
release
renewable
reservoir
river
rivers
rock
sky
smooth
spillway
springway
stone
storage
stream
streams
summer
that
travel
tree
turbulent
view
water
waterfall
waterway
waves
weir
wild