英文關鍵字
mask
man
old
facemask
senior
window
waving
hand
elderly
social
patient
corona
person
apartment
home
hospital
male
people
aged
house
indoor
room
inside
clinic
year
elder
face
coronavirus
covid
quarantine
lockdown
protect
medical
healthcare
view
gesture
greeting
through
curtain
white
back
rear
light
distance
distancing
care
safety