英文關鍵字
alert
background
behavior
breath
breathing
caucasian
chinese
clothing
concept
corona
coronavirus
cough
covid
danger
disease
epidemic
face
fear
fight
flu
girl
global
grippe
health
hotspot
illness
individual
infection
mask
medical
medicine
outbreak
pandemic
panic
patient
personal
protection
protective
quarantine
respiratory
responsibility
security
sick
spread
sterile
studio
unhealthy
virus
woman