英文關鍵字
adult
african
american
architect
black
blueprint
blueprints
build
building
business
caucasian
construction
contractor
engineer
engineering
explanation
female
foreman
hard
hardhat
hat
helmet
industry
inspect
job
looking
male
males
man
management
manager
men
occupation
outdoors
people
professional
project
safety
site
stand
suit
team
teamwork
trio
white
woman
women
work
worker
working