英文關鍵字
abstract
air
airplane
art
backdrop
background
beautiful
black
blow
cloud
concept
copyspace
dark
design
dirty
drops
dust
dynamic
eco
ecology
effect
engine
environment
explode
explosion
fire
flow
flowing
fog
fume
gas
grey
isolated
light
magic
motion
pattern
pollution
shape
smoke
smoky
smooth
spray
steam
stream
thick
trail
transparent
wave
white