機器
cement
concrete
construction
contractor
domestic
economic
economy
employment
equipment
government
gravel
improve
improvement
industrial
industry
infrastructure
job
labor
labour
machinery
mix
municipal
municipality
neighborhood
neighbourhood
pavement
paving
pour
project
public
rake
renewal
repair
replace
residential
restore
road
roadworks
service
shovel
sidewalk
site
street
surface
upgrade
urban
wet
work