機器
activity
blue
bucket
build
building
bulldozer
construct
construction
develop
digger
dirt
earth
engineering
equipment
excavate
excavating
excavation
excavator
expand
ground
heavy
hydraulic
industrial
industry
land
landscape
loader
machinery
mountain
moving
one
outdoors
power
road
sand
shovel
site
soil
sunset
vehicle
wheel
work
workout
yellow