機器
adult
architect
asian
attractive
bore
builder
business
businesswoman
career
caucasian
construction
contractor
craftsperson
creative
design
drill
drilling
engineer
engineering
equipment
hand
hardhat
hat
helmet
industrial
industry
instrument
isolated
job
looking
manager
plan
portrait
professional
safe
safety
serious
smile
suit
thinking
tool
white
woman
work
worker
yellow
young