英文關鍵字
architect
architecture
background
blue
blueprint
builder
building
business
cement
civil
concrete
construction
contractor
crane
design
development
engineer
engineering
equipment
estate
ground
hardhat
helmet
home
house
housing
industrial
industry
job
land
male
man
men
occupation
people
professional
project
safety
scaffolding
silhouette
site
steel
structure
sunset
team
technology
work
worker
yellow
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