英文關鍵字
abstract
action
air
backdrop
background
black
blow
burn
cloud
concept
copyspace
dense
dirty
disco
eco
ecology
effect
element
emit
engine
environment
exhaust
flow
flowing
fog
fume
gas
generator
grey
isolated
jet
light
machine
mist
motion
nature
pattern
pollution
rich
smoke
smoky
spray
stream
studio
thick
trail
turbo
vapour
white