機器
back view
clay
clayey
clouds
construction
day
dig
digger
equipment
excavation
excavator
gravel
great
ground
heaven
heavy
i use
industrial
industry
land
lift
loader
machinery
mining
no one
outdoor
quarry
rear
remove
rubber
shovel
side
side view
spoon
sunny
to work
toothed
tractor
transportation
vehicle
wheel
work
works
yellow