英文關鍵字
activity
allen
animation
bicycle
bike
brake
caliper
cartoon
cycle
cyclist
detail
element
equipment
fix
gear
graphic
hardware
icon
industry
instrument
key
kit
lever
link
maintenance
measure
mechanic
metal
metallic
motion
mountain
necessary
object
part
pinion
puller
repair
repairing
screw
service
set
sign
spanner
spoke
sport
steel
technology
tool
wheel
work
wrench