機器
agriculture
build
bulldozer
construction
contractor
dig
digger
dirt
dirty
dredge
earth
earthmover
earthmoving
equipment
excavate
excavation
excavator
field
flatten
green
ground
heavy
hydraulic
industrial
industry
land
large
machinery
meadow
mover
moving
nature
outdoor
power
scoop
scraper
shovel
shoveling
site
sky
soil
summer
track
tractor
transport
transportation
vehicle
work
yellow