英文關鍵字
bacterium
bubble
care
clean
cleaning
cleanliness
cleansing
corona
coronavirus
covid
dirty
disease
disinfect
epidemic
finger
foam
hand
hands
health
healthcare
healthy
hygiene
hygienic
illness
infection
liquid
medical
microbe
pandemic
person
pouring
prevent
prevention
protect
protection
purity
rubbing
sanitary
scrubbing
sink
skin
soap
splash
splashing
virus
wash
washing
water
wet