機器
activity
big
bucket
building
bulldozer
construction
construction site
development
dig
digger
diggers
dump
dump truck
earth
equipment
excavation
excavator
gravel
ground
heavy
hydraulic
industrial
industry
large
load
loader
machinery
mover
moving
outdoors
pile
power
road
rock
sand
shovel
site
sky
soil
track hoe
trackhoe
tractor
transport
transportation
truck
unloading
vehicle
work
yellow