Старший преподаватель, показывающий жест идеи - Стоковое фото и изображение

Smiling grey hair professor holding paper plane in lecture hall

Thoughtful senior lecturer sitting at table with pencil and notebook

Senior lecturer holding book and pointing on something

Senior lecturer holding book and looking away

Senior lecturer writing something on blackboard and showing one finger up

Grey hair professor talking by smartphone and looking at camera

Senior lecturer holding book and showing one finger up

Smiling grey hair professor looking at smartphone in lecture room

Cheerful businessman in glasses voting near brick wall

Pensive handsome grey hair man thinking and looking at chessboard at home

Senior writer in tweed suit and eyeglasses with letter near workplace

Confident mature businessman adjusting eyeglasses and looking at camera

Adult son and senior father gesturing while playing chess at home

Bearded businessman in glasses voting near brick wall

Serious senior man writing in notebook with pencil

Handsome grey hair man reading book at home

Excited senior man in bow tie and jacket holding smartphone isolated on grey