英文關鍵字
adult
arm
circle
circular
craftsman
cut
electric
engineer
equipment
flash
garage
grind
grinder
hand
hard
indoor
industry
instrument
job
machine
male
man
manual
mechanic
mechanical
metal
metalwork
occupation
part
person
profession
professional
repair
repairman
safety
saw
spark
steel
technology
tool
weld
welder
wheel
work
worker
workplace
workshop