英文關鍵字
bad
bath
bathroom
blockage
cleaner
cleaning
clearing
clog
clogged
clogging
closeup
contaminated
dirty
domestic
drain
drainage
drainpipe
fitting
foul
hairs
home
house
hygiene
job
life
pipe
pipeline
plumber
plumbing
pollute
problem
problems
repair
repairing
sanitary
service
sewage
sewer
sewerage
sink
siphon
stuck
tube
unhygienic
wash
washbasin
washbowl
water
work