英文關鍵字
boy
call
caucasian
child
coach
communication
computer
desk
distance
education
elearning
floor
greet
hand
happy
headphones
home
indoor
kid
laptop
learning
lesson
notebook
online
pencil
person
primary
pupil
remote
room
school
sitting
smiling
social
sofa
student
study
table
teacher
technology
video
waving
young