機器
backhoe
brown
bucket
building
bulldozer
car
concrete
construction
constructioncartoon
crane
dig
digger
dump
excavate
excavation
excavator
gray
heavy
hollow
hydraulic
industrial
industry
label
loader
lorry
machinery
mixer
power
powerful
pump
ribbon
scoop
shovel
track
tractor
truck
under
vehicle
wheel
yellow