英文關鍵字
builder
building
cement
concrete
construction
contractor
employment
equipment
floor
fresh
house
industrial
industry
infrastructure
job
liquid
male
man
mix
mixer
mixing
pattern
paving
people
person
pour
pouring
professional
project
public
rake
renewal
repair
residential
road
service
sidewalk
site
street
surface
upgrade
urban
wet
work
worker
workers
works