機器
big
blow
bucket
bulldozer
construct
construction
develop
development
dig
digger
dirt
dust
dusty
earth
environment
equipment
excavate
excavating
excavation
excavator
factory
field
heap
heavy
hill
hollow
hydraulic
imprint
inner
large
loader
metal
mine
mongolia
mountain
mover
one
orange
power
red
sand
scoop
shovel
site
soil
terrain
truck
work
worksite