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elderly female lecturing students together with her male assistant, showing, explaining
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dreamstime
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File Type:
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adult
boss
business
caucasian
conference
copy
drawings
elderly
employee
explaining
female
glasses
gray
group
hair
improvement
improving
indoor
knowledge
learning
lecturing
looking
male
men
people
pointing
positive
presentation
professor
projector
prosper
room
seminar
sharing
short
showing
sitting
smiling
space
specialization
standing
students
supervisor
teaching
visual
women
young