英文關鍵字
calm
mountain
river
washes
large
stones
smooth
flow
slow
motion
video
foam
close
high
quality
fullhd
footage
stone
nature
rock
water
landscape
flux
washed
stream
beautiful
wave
closeup
environment
travel
splash
pebble
wet
fall
summer
grey
reflection
brown
day
harmony
pure
serene
tranquility
dripping
moving
obstacle
obstruction
overcoming
big
cool
hills
rough
textured
cobble
sunlight
riverbed