機器
activity
big
bulldozer
construction
contractor
dig
digger
dirt
disposal
dredger
engineering
equipment
excavation
excavator
ground
heavy
horizontal
huge
industrial
industry
lift
machinery
maintenance
metal
operate
outdoors
pavement
power
removing
renovation
repair
road
roadwork
rural
rustic
scoop
shovel
site
stationary
steel
technology
tractor
transport
truck
vehicle
wheel
work
yellow