機器
alone
angle
backhoe
barrier
bucket
bulldozer
climbs
cloudy
construction
dig
digger
dirt
dirty
dug
earth
equipment
going
ground
heavy
high
highway
hired
hurdle
hydraulic
idle
industrial
industry
isolated
job
metal
mover
moves
off
one
overcome
passability
permeability
power
road
site
solitary
tool
track
tractor
transport
up
white
work
yellow