英文關鍵字
abstract
accuracy
and
animation
background
balance
business
chrome
clock
clockworks
close
cogs
communication
concept
connect
connection
cooperation
dark
engine
engineer
gears
ideas
industry
inside
inspiration
invention
iron
link
machine
mechanical
metal
motion
organization
part
power
rotating
rotation
shiny
silver
solution
spinning
steel
strength
teamwork
technology
together
turning
unite
video
wheel
working