英文關鍵字
age
aged
blue
brown
caucasian
clever
close
coronavirus
covid
disposable
downward
elderly
epidemic
extreme
eye
face
glasses
healthcare
home
indoor
isolation
look
male
man
mask
motion
old
pandemic
pensioner
people
person
protection
quarantine
safety
senior
serious
slow
sterile
view
virus
wall
wrinkled