機器
bucket
build
building
business
cargo
construct
construction
construction site
digger
dirt
dump
dumper
earth
equipment
excavate
excavation
excavator
gravel
ground
heavy
industrial
industry
job
labor
large
load
lorry
machinery
mining
mover
outdoor
power
road
sand
scoop
shovel
site
soil
tipper
transport
transportation
truck
vehicle
wheel
work
yellow