英文關鍵字
innovation
creativity
technology
engineering
design
invention
future
progress
business
industry
mechanics
gears
metal
parts
construction
closeup
slow
motion
animation
stop
英文關鍵字
innovation
creativity
technology
engineering
design
invention
future
progress
business
industry
mechanics
gears
metal
parts
construction
closeup
slow
motion
animation
stop