英文關鍵字
aged
background
biohazard
building
care
cheerful
child
citizen
citizens
concept
corona
coronavirus
covid19
crisis
disease
doctor
elderly
epidemic
family
flu
focus
funny
garden
health
home
house
humor
ill
illness
infect
infection
influenza
loss
mask
masks
medical
medicine
miniature
nature
new
outbreak
pandemia
parent
people
pneumonia
positive
prevent
protect
protection
quarantine
risk
safety
selective
sick
sickness
toy
treatment
type
virus
viruses
warning
wear
wearing