英文關鍵字
view
construction
site
worker
protective
orange
helmet
holds
special
tool
his
hands
cuts
metal
fittings
using
angle
grinder
dangerous
action
architect
architecture
background
block
blueprint
build
builder
business
cement
concept
concrete
contractor
design
development
engineer
engineering
equipment
estate
group
home
house
industrial
industry
infrastructure
job
land
machine
machinery
maintenance
manufacturing
meeting
occupation
outdoor
plan
professional
project
safety
sparks
structure
team
teamwork
technology
work
workplace