英文關鍵字
man
sign
language
via
video
link
laptop
caucasian
communicates
online
remote
talking
deaf
happy
male
hearing
help
disabled
smile
tablet
gesture
distance
device
outdoors
city
downtown
hands
business
aid
adult
computer
sound
discussion
connection
conversation
call
chatting
network
web
webcam
wireless
using
technology
successful
virtual
meeting
mute
conference
emotional