英文關鍵字
air
bubble
shape
water
underwater
move
bubbly
stream
surface
energy
wet
splash
liquid
slow
flowing
nature
clear
ripple
motion
blue
pure
background
abstract
drink
environment
movement
purity
fresh
droplet
flow
bright
healthy
circle
beautiful
backdrop
natural
clean
health
viscosity
cold
white
splashing
aqua
drip
transparent
fluid
macro
moving
closeup