英文關鍵字
asphalt
equipment
heavy
machine
road
bitumen
industrial
roadwork
street
asphalting
construction
highway
industry
pavement
worker
compactor
renewal
building
machinery
work
vehicle
gravel
repairing
roller
steam
infrastructure
pave
pressure
loader
paving
shovel
steamroller
occupation
surface
workers
repair
workforce
blacktopping
bulldozer
cement
development