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英文關鍵字
background
nobody
horizontal
artificial
business
metal
silver
gold
detail
abstract
action
steel
connection
technology
antique
old
retro
vintage
accuracy
chrome
machine
clock
inspiration
concept
motion
construction
industry
engine
connect
working
work
metallic
together
wheel
ancient
gear
iron
spinning
teamwork
engineer
steam
animation
cooperation
cogs
clockworks
Digitally Generated Image
Inside of
Machine Part
Machine Teeth