機器
big
bucket
build
building site
bulldozer
construct
construction
demolish
demolition
development
dig
dirt
dusty
earth
earthmover
equipment
excavate
excavating
excavation
excavator
gravel
ground
heavy
high
hill
hydraulic
industrial
landscape
large
loader
machinery
mountain
mountains
outdoors
parked
power
powerful
road
shovel
site
technology
tool
track
tractor
vehicle
work
yellow