英文關鍵字
activity
architecture
asia
asian
build
builder
building
built
concrete
constructing
construction
contemporary
contractor
engineer
engineering
engineers
environment
factory
foreman
group
hardhat
industrial
industry
labor
laborer
man
manufacturing
master
metalworker
modern
objects
outdoors
people
plant
power
safety
scene
steel
supervisor
team
teamwork
technology
tower
walking
work
worker
workers
working
workshop