英文關鍵字
2019ncov
care
child
children
concept
corona
coronavirus
covid
covid19
disease
epidemic
europe
european
face
facemask
flag
flu
girl
health
healthy
home
ill
illness
infected
infection
influenza
isolation
kid
little
mask
masked
medical
medicine
mouth
pandemic
pollution
prevention
protect
protection
protective
quarantine
respirator
respiratory
safety
sick
sickness
stay
union
virus
wearing