英文關鍵字
activity
asphalt
asphalting
bitumen
blacktopping
building
city
compactor
construction
crew
equipment
heat
heavy
highway
hot
industrial
industry
interstate
job
lane
loader
machine
machinery
manual
multilayered
new
occupation
pave
pavement
paver
paving
pressure
renewal
repair
road
roadwork
roll
roller
runner
shoveling
site
spreading
steam
steamroller
street
summer
sweeping
teamwork
work
worker