英文關鍵字
allergy
baby
background
bandage
boy
care
caucasian
child
children
chroma
close
copy
copyspace
corona
coronavirus
covid19
danger
disease
epidemic
face
facemask
flu
green
health
his
illness
infection
influenza
key
kid
left
loneliness
look
mask
medical
outbreak
pandemic
people
pneumonia
pollution
prevention
protect
protection
protective
putting
quarantine
respiratory
screen
sickness
space
temperature
theme
virus
wearing
young