Χαμογελώντας καθηγητής γκρίζα μαλλιά που κάθεται άδειο αίθουσα με φορητό υπολογιστή - Φωτογραφίες & Εικόνες Αρχείου

Grey hair professor looking at laptop

Grey hair professor talking by smartphone and looking at laptop

Smiling grey hair professor sitting in empty lecture room and talking by smartphone

Senior lecturer in empty lecture room screaming and looking at laptop

Grey hair professor holding apple and using laptop

Grey hair professor yawning in empty lecture room

Senior man in headphones using laptop

Grey hair professor sitting in empty lecture room and looking at laptop

Side view of handsome grey hair man using laptop at home

Cropped image of grey hair man using laptop at home

Shocked senior man looking at laptop isolated on grey

Happy grey hair man watching on laptop at home and celebrate win a bet with a gambling, soccer bet, sports gambling

Handsome grey hair man sitting on sofa and using laptop

Handsome grey hair man sitting on sofa in living room and using laptop

Close-up shot of senior man using laptop

Selective focus of middle aged operator in headset talking and gesturing while working from home

Cropped image of grey hair man using laptop on sofa at home

Thoughtful senior man looking at laptop