英文關鍵字
asphalt
black
blow
broken
care
congestion
construction
cork
crack
crushed
damaged
danger
granite
gravel
hot
industry
machine
machinery
minor
mix
mixing
patches
perform
pits
plot
production
repair
resin
restoration
road
roadway
rubble
sealing
sidewalk
smooth
spraying
stone
surface
transport
upgrade
vehicle
work
worker
workers