機器
action
activity
angle
backhoe
blade
bucket
build
bulldozer
business
clear
construct
construction
contractor
development
dig
digging
dirt
earth
earthmover
equipment
excavate
excavation
excavator
gear
ground
handful
heavy
horizontal
hydraulic
industrial
industry
loader
machinery
mining
mover
occupation
power
quarry
sand
scoop
shovel
site
soil
tractor
transportation
vehicle
work
working
yellow