英文關鍵字
answer
boy
call
chat
child
class
communication
computer
connection
cute
distance
distant
education
elearning
elementary
home
homework
indoor
internet
kid
knowledge
language
laptop
learning
lesson
listening
networking
notebook
online
person
preschool
pupil
quarantine
remote
room
school
schoolboy
student
studying
talk
teaching
technology
tutor
watching
webcam
young