英文關鍵字
beard
contractor
control
coverall
covers
craftsperson
danger
electric
electrical
electrician
electricity
engineer
engineering
examining
face
factory
hard
hardhat
hat
helmet
his
industrial
industry
inspection
inspects
job
labor
man
manufacturing
mask
mechanic
occupation
person
portrait
professional
protective
renovation
repairing
repairman
safety
service
shield
smile
smiling
success
technician
technology
uniform
wires
wiring
work
worker
working
workplace
workwear