英文關鍵字
propeller
technology
abstract
background
element
circle
rotation
effect
fan
design
vector
black
spiral
graphic
pattern
motion
line
round
industrial
shape
isolated
blade
swirl
light
white
turbine
backdrop
power
symbol
detail
monochrome
spin
icon
vintage
wallpaper
decorative
aviation
airplane
cover
decoration
blue
nature
engine
center
energy
wave
vortex
art
video
green
screen
red
color
suitable
footage
backgrounds
music
films
advertisements