機器
accessories
activity
asphalt
backhoe
bulldozer
construction
dig
digger
dirt
earth
engine
equipment
excavate
excavation
excavator
gravel
ground
hard
heavy
highway
industrial
industry
landscape
machinery
maintenance
make
mover
paving
power
renewal
repair
repairman
road
roadway
roadworks
sand
scene
shovel
site
sky
soil
street
transportation
vehicle
work
yellow