academic
asia
asian
back
behind
blackboard
broadcast
chinese
class
covid19
distance teaching
education
elearning
explain
female
formula
girl
headset
high school
internet
laptop
learning
lesson
live
male
man
math
mathematics
note
online
pan asian
people
rear view
record
remote
school
senior high school
speaking
student
study
talking
teacher
teaching
trigonometric function
video
webcam
young
定額
rear view of asian girl is learning math online through listeing to male high school teacher teaching trigonometric function by laptop at homeの素材 [FY310161815916]
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