機器
adult
bioclean
business
caucasian
chores
clean
cleaner
cleaning
cleanliness
cleanness
clinic
corridor
dust
equipment
factory
female
floor
floor care
flooring
hall
hospital
industrial
job
maintenance
male
mop
neatness
pass
passage
people
person
plant
purity
routine
scrab
service
sterile
sterility
store
technology
uniform
washer
washing
water
wet
woman
work
worker
working