機器
action
activity
backhoe
bucket
building
bulldozer
close
construction
day
detail
digger
dirt
dredger
dust
engineering
equipment
excavate
excavation
excavator
gear
gravel
heavy
horizontal
hydraulic
industrial
industry
loader
machinery
massive
move
mover
operate
outdoor
outside
power
progress
road
sand
scoop
shovel
spoon
stone
technology
tool
transportation
up
vehicle
working
yellow