機器
during
activity
backhoe
bucket
build
building
bulldozer
construction
development
dig
digger
earth
earthmover
earthmoving
equipment
excavating
excavation
excavator
ground
heavy
hydraulic
industrial
industry
loader
machinery
mining
mover
outdoors
quarry
road
sand
sandpit
scoop
shovel
site
sky
soil
tractor
truck
vehicle
work
works
yellow