機器
activity
blue
bucket
build
bulldozer
construction
diesel
dig
digger
dirt
dredger
duty
earth
equipment
excavate
excavation
excavator
ground
heavy
hydraulic
industrial
industry
large
loader
machinery
mining
modern
mover
nature
new
outdoors
power
road
sand
scoop
shovel
site
sky
technology
track
tractor
transport
vehicle
wheel
white
work
yellow