Giovane insegnante con libro aperto che punta alla maschera medica mentre in piedi vicino alla lavagna - Foto e immagini stock

Young teacher in eyeglasses holding open book and looking at camera while standing near chalkboard

Portrait of a female student in a medical protective mask and gloves holding books on a blue background.

Portrait of a female student in a medical protective mask and gloves holding books and showing a thumbs up on a blue background.

African american teacher pointing with hand at blurred pupils during lesson

Low angle view of blurred businesswoman in medical mask writing on notebook in office

Florist in medical mask holding tablet with blank screen while looking at camera

Blonde manager in medical mask working on laptop on blurred foreground

Blurred businesswoman in medical mask writing on notebook near laptop in office

Grey haired businesswoman in medical mask holding paper and writing on notebook near laptop in office

African american businesswoman in medical mask and earphones looking at camera near blurred colleague in office, banner

Cropped view of ophthalmologist in medical mask showing eyeglasses in optics store