英文關鍵字
one
person
mid
adult
woman
female
caucasian
people
hygiene
washing
hands
message
hazard
tape
warning
real
flag
us
america
american
social
distancing
quarantine
self
isolation
lockdown
coronavirus
coronaviridae
covid
19
covid19
dangerous
disease
virus
epidemic
health
illness
human
infection
outbreak
science
idea
concept
digital
pandemic
scare
global
contagious
contagion
care
medicine
animation
montage
digitally
generated