英文關鍵字
stream
thick
white
smoke
isolated
black
falling
steam
texture
motion
flying
cloud
cold
fog
vapor
curl
smog
ice
hookah
movement
cigarette
puff
wave
tail
fading
shape
dissolve
scatter
background
random
chemical
smooth
cumulus
fume
overlay
mass
activity
wind
dynamic
frozen
composite
spin
art