英文關鍵字
brush
buffing
business
clean
cleaner
cleaning
cleanliness
cleanup
commercial
dirty
dust
equipment
factory
floor
flooring
hallway
hygiene
indoors
industrial
industry
janitor
janitorial
job
machine
mop
occupation
operator
polishing
production
professional
purity
routine
scrubber
scrubbing
self
service
services
sterile
tidy
vacuum
wash
washing
water
wet
work
worker