英文關鍵字
older
mature
senior
middle
aged
old
adult
elderly
50s
business
businesswoman
woman
work
webinar
videoconference
virtual
videocall
using
video
tutor
user
technology
talking
teacher
remotely
professional
person
office
online
grey
hair
app
call
client
modern
negotiate
meeting
laptop
lifestyle
internet
headphones
discuss
desk
device
consulting
conversation
conference
computer
communication
tuition