機器
activity
asphalt
break
builder
building
cement
circular
concrete
construction
contractor
cutting
demolish
demolition
destruction
drill
drilling
electric
equipment
excavator
floor
hammer
hard
heavy
if you
industrial
industry
job
labor day
male
man
mason
material
occupation
outdoor
patching
pavement
person
power
remove
repair
road
street
technology
tool
urban
work
worker