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Von IgorVetushko 7202x4807 px
Stockfoto-ID: 178883412
Senior lecturer holding piece of chalk and looking away
Senior lecturer pointing on something in lecture room
Grey hair professor pointing on something at lecture hall
Senior lecturer holding book and looking away
Happy senior lecturer buttoning shirt
Grey hair professor sitting on table in lecture room and holding book
Grey hair professor pointing on something at blackboard
Smiling grey hair professor holding stack of books with apple on top
Elderly man in bow tie and blue jacket using smartphone isolated on grey
Positive senior man talking on smartphone and pointing with finger isolated on grey
Pensive handsome grey hair man holding book and looking at camera
Smiling senior man holding medical mask isolated on grey
Happy bearded speaker in glasses talking near microphones and brick wall
Serious senior man in tweed suit and glasses looking at camera
Excited senior man in bow tie and jacket holding smartphone isolated on grey
Smiling elderly man in eyeglasses and bow tie looking at camera isolated on grey