機器
architecture
break
bucket
building
bulldozer
city
concrete
construction
crane
crane arm
crane boom
crushing
damage
danger
debris
demolish
demolished
demolishing
demolition
destroy
destruction
development
dismantling
dust
equipment
excavation
excavator
heavy
house
hydraulic
industrial
industry
machinery
old
power
professional
rebuilding
roof
rubble
ruin
site
stone
structure
trash
urban
vehicle
wall
work
yellow