機器
action
backhoe
bucket
bulldozer
caterpillar
civil
cold
constructing
construction
copy space
copyspace
dig
digger
digging
dirt
dozer
earth
earthmover
equipment
excavating
excavation
excavator
frozen
ground
hard
heavy
hoe
horizontal
hydraulic
job
jobs
loader
machinery
mechanical
motion
mound
move
moving
new
pile
project
projects
shovel
site
snow
winter
work
works