機器
auger
background
break
brick
builder
building
coal
concrete
construction
constructor
demolition
destroyer
destruction
drill
drilling
electric
equipment
gadder
hammer
hole
home
human
industry
jack
jackhammer
laborer
maintenance
male
man
paving
perforate
perforating
pneumatic
power
professional
punch
reconstruction
renewal
repair
road
rotary
service
site
technology
tool
wall
white
work
worker