英文關鍵字
fast
water
flow
close
waterfall
slow
motion
river
stream
flowing
cascade
fall
nature
landscape
outdoor
environment
summer
fresh
wild
wet
spring
blue
fluid
splash
splatter
ripple
spray
bubble
foam
surf
froth
cataract
season
falling
torrent
springtime
drop
drip
droplet
pour
liquid
rapid
aqua
scenic
current
nobody
slowmo