英文關鍵字
adult
air
allergy
bad
communication
control
copy
corona
coronavirus
defense
device
disease
epidemic
flu
health
home
hygiene
infect
infection
infectious
influenza
lifestyle
man
mask
media
medical
mobile
news
outbreak
pandemic
panic
phone
pneumonia
pollution
prevent
prevention
problem
protect
protection
scared
sick
smartphone
social
space
spread
stay
stills
talk
using
vaccine
virus