機器
activity
big
blade
bulldozer
construction
development
digger
earth
earthmover
equipment
excavating
excavation
excavator
grader
graders
gravel
heavy
hydraulic
industrial
industry
large
leveler
loader
machinery
metal
motor
mover
operator
outdoor
outdoors
power
road
scraper
site
tractor
vehicle
wheel
work
working
yellow