英文關鍵字
business
businesswoman
call
camera
chat
class
coach
communication
computer
conference
connection
conversation
desk
discussion
distance
education
elearning
explaining
filming
girl
internet
interview
job
lady
laptop
learning
lecture
lesson
looking
mature
old
online
person
presentation
professional
recording
school
senior
student
studying
teacher
technology
tutor
university
video
web
webcam
woman