英文關鍵字
bacteria
bath
bathroom
broken
calcified
calcium
carbonate
chalky
chrome
copy
damage
decalcification
descaling
dirt
dirty
drip
drop
droplet
equipment
faucet
handle
hygiene
isolated
leak
leakage
leaking
leaky
liquid
maintenance
metal
mineral
old
plumber
plumbing
poverty
problem
rust
save
scaled
sink
space
steel
stopcock
tap
unclean
valve
water
wet