英文關鍵字
2019
2019ncov
access
accident
activity
barricade
barrier
center
childhood
children
closed
control
coronaviridae
coronavirus
covid
covid19
dangerous
disease
empty
end
entertainment
entrance
entry
epidemic
forbidden
guard
hazard
health
home
illness
isolation
leisure
outdoors
pandemia
pandemic
park
playground
preschool
prevent
prevention
preventive
prophylaxis
protect
protection
protective
public
quarantine
recreation
restricted
restriction
safety
sarscov2
sign
spend
stay
stop
striped
tape
time
virus
warning
way