Vue arrière du garçon et de la fille en blouse de laboratoire dessinant des formules chimiques sur tableau, concept d'école de science

petits scientifiques en laboratoire
- Photo, image

petits scientifiques en laboratoire
- Photo, image

Vue arrière du garçon et de la fille en blouse de laboratoire dessinant des formules chimiques sur tableau, concept d'école de science - Photo & image de stock

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