英文關鍵字
2019
background
banner
care
concept
corona
coronavirus
covid
covid19
danger
disease
doctor
epidemic
flu
fun
game
global
health
healthcare
home
illness
infection
know
mask
medical
medicine
message
ncov
note
outbreak
pandemic
prevention
protection
quarantine
safe
safety
sign
stay
stop
tablets
tac
tic
toe
virus
warning
word
words
world