英文關鍵字
antibacterial
bright
carefully
clean
corona
coronavirus
covid
covid19
disease
disinfect
disinfectant
epidemic
foam
hand
health
horizontal
hygiene
indoors
infectious
male
modern
palm
protection
right
rinse
rub
sanitise
sanitizer
sink
skin
slow
soap
sterilize
thoroughly
virus
wash
washing
washroom