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Classic subjects learning. Improve teaching skills. Mature pedagogue. Knowledge and culture are each dynamic. Teaching changed. Man bearded tutor in classroom. Main task in teaching. Formal education
Keywords:
men
education
adult
book
indoors
caucasian ethnicity
blackboard
businessman
senior adult
smiling
looking at camera
beard
cheerful
portrait
professor
learning
senior men
one person
dynamic change
senior beard professor
professor formal portrait
subject blackboard
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