機器
activity
backhoe
backlit
bucket
build
building
bulldozer
construction
construction site
damage
destroy
destruction
development
dig
digger
dirt
earth
earthmover
earthwork
engineering
equipment
excavate
excavating
excavation
excavator
gravel
ground
heavy
hydraulic
industrial
industry
infrastructure
job
loader
machinery
mover
moving
occupation
power
quarry
safety
scoop
shovel
soil
vehicle
work
workplace