英文關鍵字
bacteria
bathroom
bubbles
clean
cleanliness
cleansing
def
faucet
fingers
foam
fresh
good
hand
hands
health
healthy
household
hygiene
isolated
liquid
microbes
personal
pour
purely
running
safe
sanitary
sink
skin
slowmo
soap
soapy
stream
suds
tap
wash
washing
washroom
water
wet