英文關鍵字
adult
advert
advertise
advertisement
advertising
alert
all
billboard
caucasian
concept
control
corona
coronavirus
cough
cov
covid
epidemic
female
fever
girl
global
hand
hands
her
holding
holds
home
house
human
illness
illustration
infected
infection
isolated
isolation
mask
message
paper
person
placard
presenting
prevention
quarantine
right
show
showing
sign
signboard
spain
spanish
spread
standing
stay
symbol
syndrome
terrace
text
viral
virus
will
woman
written