機器
adult
broom
brush
business
car
care
chores
clean
cleaner
cleaning
cleanup
detergent
dirty
domestic
dust
equipment
factory
floor
flooring
garbage
hall
hardwood
home
house
household
hygiene
industrial
industry
job
machinery
maintenance
mechanical
motion
municipal
pavement
road
rotating
routine
rubbish
service
sidewalk
street
sweeper
sweeping
technology
wash
washer
water
work