英文關鍵字
adult
aged
bookshelves
bye
call
caucasian
chat
cheerful
communication
computer
conference
connection
conversation
cyberspace
discussion
elderly
family
friend
friendship
gesture
goodbye
greeting
happy
home
house
indoor
internet
isolation
living
male
man
mature
meeting
motion
old
online
person
portrait
quarantine
retired
room
senior
sitting
slow
smiling
tablet
talking
technology
together
using
video
webcam