機器
activity
bucket
construct
construction
dig
digger
dirt
dredger
dusty
earth
earthmover
earthmoving
engineering
equipment
excavate
excavating
excavation
excavator
flint
granite
gravel
ground
heavy
hill
industrial
industry
large
loader
machinery
mountain
mover
occupation
open pit mining
pit
power
quarry
road
scoop
shovel
site
soil
stone mine
technology
transport
transportation
truck
vehicle
work
yellow