英文關鍵字
autumn
care
corona
coronavirus
covid
covid19
distancing
epidemic
face
fall
family
flu
global
health
herd
illness
immunity
infection
influenza
lockdown
mask
medicine
mother
off
outbreak
pandemic
park
positive
protection
protective
quarantine
safety
scooter
second
social
son
street
take
together
virus
wave
wearing
woman