機器
activity
asphalt
backhoe
bitumen
bucket
build
building
bulldozer
construct
construction
contractor
crawler
demolition
destruction
development
dig
digger
dismantle
dismantling
earthmover
equipment
excavate
excavating
excavation
excavator
grader
gripper
ground
industry
job
labor
lift
machinery
outdoor
road
rubble
sand
scoop
scraper
shovel
tool
track
tractor
tractor bucket
transport
work
wreck
yellow