英文關鍵字
adult
alone
apartment
background
caucasian
child
concerned
coronavirus
covid19
disease
epidemic
face
flu
girl
glass
hand
health
healthy
home
house
hygiene
illness
indoor
infection
isolation
lifestyle
looking
looks
man
medical
nature
pandemic
people
portrait
protection
protective
quarantine
safety
small
spring
stay
street
symptoms
virus
window
woman
young