機器
architecture
background
break
breaker
brick
builder
building
coal
construction
constructor
craftsman
demolition
destruction
drill
drilling
electric
equipment
gadder
grayhaired
hammer
hole
home
industry
jackhammer
making
male
man
paving
perforate
perforating
perforator
pneumatic
power
professional
punch
puncher
reconstruction
renewal
repair
rockdrill
service
site
strong
tool
wall
white
work
worker
workman