英文關鍵字
are
business
businessman
businesswoman
camera
clothing
communication
computer
delivering
discussing
discussion
engineer
engineering
equipment
facility
factory
female
group
helmet
industrial
industry
inspector
labor
large
machine
machinery
machines
male
man
manufacturing
meeting
metal
occupation
operation
people
plant
plants
power
production
professional
safety
solution
speaking
talking
team
teamwork
technician
technicians
technology
together
training
woman
work
worker
workplace
workshop