機器
cement
concrete
construction
contractor
driveway
economic
employment
equipment
government
gravel
improve
improvement
industrial
industry
infrastructure
job
jobs
labor
labour
mix
mixer
municipality
pave
pavement
paving
pour
public
rake
renewal
repair
replace
residential
restore
road
roadworks
rod
service
shovel
sidewalk
smooth
spread
spreader
street
surface
urban
urban renewal
wet
work
worker