英文關鍵字
age
aged
caucasian
city
coronavirus
covid
covid19
day
disease
disposable
distancing
elder
elderly
epidemic
face
focus
global
health
healthcare
healthy
home
indoor
inside
isolation
looking
looks
man
mask
medical
old
older
outside
pandemic
pension
pensioner
prohibition
protecting
protection
protective
quarantine
respirator
retired
retirees
room
sad
safety
save
selective
senior
social
stands
stay
street
virus
while
window
years