英文關鍵字
background
backgrounds
brook
catchment
countryside
creek
day
drain
drainage
draining
drop
energy
environment
fall
falling
flow
flowing
forest
fresh
green
idyllic
liquid
motion
nature
nobody
outdoors
pouring
power
reservoir
rock
rocks
slow
speed
splash
splashing
stone
stones
stream
streams
water
waterfall
wet