機器
activity
bucket
build
building
bulldozer
compact
construction
copy space
dig
digger
dirt
earth
equipment
excavate
excavating
excavation
excavator
grader
ground
heavy
hydraulic
industrial
industry
loader
machinery
metal
mini
mover
nobody
power
road
sand
scoop
shovel
site
sky
small
soil
tool
tractor
transport
vehicle
work
worker