英文關鍵字
one
person
young
adult
woman
female
caucasian
people
real
hazard
sign
global
emergency
walking
barefoot
beach
sand
coronavirus
covid
19
covid19
pandemic
disease
spreading
virus
medicine
concept
health
illness
infection
outbreak
science
sickness
idea
digital
corona
contagious
contagion
dangerous
unhealthy
warning
alert
bacteria
biohazard
biology
coronaviridae
element
epidemic
care
animation
montage
digitally
generated