Χαμογελαστός δάσκαλος σε προστατευτικά γυαλιά στέκεται με σταυρωτά χέρια μπροστά από τους μαθητές κατά τη διάρκεια του μαθήματος χημείας - Φωτογραφίες & Εικόνες Αρχείου

Smiling teacher in protective goggles standing with crossed arms in front of pupils during chemistry lesson

Two young female scientists working in chemical laboratory

Close-up portrait of young woman scientist in lab coat and protective goggles smiling

Smiling chemistry teacher in white coat holding digital tablet and pointing with hand

Young female scientist working with microscope in chemical laboratory

Female optometrist with lenses for trial frame while colleague examining kid with visual field test

Dentists checking patient teeth in modern clinic

Optician holding lenses for trial frame while colleague examining kid with visual field test

Handsome young dentist showing tablet to female client

Doctor in uniform and eyeglasses making injection in training pad near medical equipment and multiethnic students in white coats, emergency preparedness and skills development concept

Female ophthalmologist with lenses for trial frame while colleague examining kid with visual field test

Doctor waiting for female patient suffering from toothache in modern dental clinic

Mother and daughter in glasses visiting oculist in clinic