機器
activity
backhoe
big
bucket
build
building
bulldozer
construction
construction site
development
dig
digger
dirt
dredger
earth
earthmover
earthmoving
engineering
equipment
excavate
excavating
excavation
excavator
gravel
ground
heavy
hydraulic
industrial
industry
job
loader
machinery
mine
mover
outdoors
power
quarry
road
sand
scoop
shovel
site
sky
soil
tractor
vehicle
work
yellow