英文關鍵字
air
appliance
backgrounds
blade
blowing
blue
chrome
climate
closeup
cold
condition
conditioner
cool
cooler
cycle
electric
electricity
equipment
fan
flow
flowing
freshness
machine
metal
midair
motion
motor
power
propeller
pump
refreshment
revival
running
silver
spinning
stainless
steel
swirl
temperature
turbine
turning
vane
ventilator
weather
wind
wire