英文關鍵字
aerial
air
allergy
blonde
bullying
care
caucasian
child
chinese
clinical
coronavirus
covid
crown
danger
death
disease
epidemic
family
girl
health
hygiene
infection
infectious
influenza
kid
medical
medicine
pandemic
pathogenic
patient
people
person
poster
prevention
problem
protection
quarantine
respiratory
risk
sad
safe
schoolgirl
sick
sickness
stop
treatment
vaccinating
vaccine
virus