英文關鍵字
adult
airborne
allergy
bacteria
bald
commuter
commuting
coronavirus
covid19
disease
epidemic
face
fashion
germs
illness
industry
infection
influenza
inside
man
mask
medical
outbreak
pandemic
passengers
patient
pollution
portrait
prevention
problem
protection
protective
public
quarantine
respiration
respirator
respiratory
sad
sitting
spread
tissue
transport
very
virus
wearing
window