英文關鍵字
bolt
breakage
chrome
concept
conceptual
construct
construction
craft
design
engineer
equipment
fix
hand
industrial
industry
kit
maintenance
manual
master
mechanic
metal
metallic
nut
object
old
professional
renovation
repair
rusty
screwdriver
service
set
several
skill
spanner
steel
technology
tool
tools
washer
work