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young woman teacher in college. instruction in a university classroom. blackboard described by chalk. projection from
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adult
back
background
blackboard
book
books
casual
caucasian
cheerful
class
classroom
college
computer
desk
education
elementary
female
formula
friendly
girl
glasses
happy
horizontal
knowledge
laptop
learn
learning
lecturer
lesson
lifestyle
nobody
people
person
professor
school
sitting
smiling
student
studying
table
tablet
teacher
technology
textbook
university
using
view
wisdom
woman
young