英文關鍵字
activity
adult
aged
class
computer
course
distancing
distant
education
elderly
elearning
enjoy
female
from
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happy
home
knowledge
laptop
learning
lecture
lesson
master
mature
middle
modern
new
notes
office
old
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pensioner
people
remote
retired
retirement
senior
sit
skills
social
study
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tech
technology
training
video
watch
webinar
woman
work