英文關鍵字
alarm
background
bacteria
banner
biology
china
chinese
chromakey
concept
coronavirus
country
danger
developing
disease
emblem
epidemic
fever
flag
flutters
global
green
health
infection
inscription
medicine
nation
national
ncov
news
outbreak
pandemic
pneumonia
quarantine
red
respiratory
science
setting
spreading
stars
sun
symbol
syndrome
text
vir
viru
virus
warning
waving
wind
words
world
yellow