機器
浜辺
activist
blade
blue
bucket
build
building
bulldozer
construct
construction
contractor
dig
digger
dirt
earth
earthmover
environment
equipment
excavate
excavation
excavator
green
heavy
hydraulic
industrial
industry
issue
labor
land
large
loader
machinery
move
mover
outdoors
peace
power
rock
scoop
shovel
site
sky
soil
track
tractor
transport
vehicle
work