英文關鍵字
adult
architecture
beautiful
brainstorming
builder
building
business
businessman
caucasian
communication
concept
couple
document
employee
engineer
engineering
factory
female
hardhat
industrial
job
male
man
manufacturing
meeting
modern
occupation
people
person
plan
profession
professional
project
protection
safety
sky
specialist
standing
success
teamwork
technician
technology
together
two
vests
woman
worker
workers
working
young