機器
arm
back
backhoe
blue
brown
bucket
bulldozer
claw
construction
design
dig
digger
dirt
earth
equipment
excavate
excavator
front
ground
heavy
hoe
hole
hydraulic
industrial
industry
iron
lift
line
loader
machinery
mover
mud
new
powerful
rocks
shovel
site
sky
soil
steel
tool
track
tractor
vehicle
work