英文關鍵字
action
builder
building
cement
concrete
construction
contractor
economic
economy
employment
equipment
floor
government
gravel
improvement
industrial
industry
infrastructure
job
labor
liquid
men
metal
mix
mixer
municipal
municipality
neighbourhood
ouring
pave
pavement
paving
pipe
pour
pouring
public
rake
renewal
repair
residential
road
roadwork
service
shovel
sidewalk
site
street
surface
upgrade
urban
wet
work
worker