schoolboy chemistry classroom happy guy background blackboard with chemical formulas |
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| navigate by keyword : schoolboy chemistry formulas blackboard classroom lesson laboratory pastime lifestyle illustration vector room time character person spending sitting background boy communication lab substance reagent coat scientist data record result progress test tube class smiling man guy male chair rejoice hands happy happiness chemical backpack education study research chemist formula exact science school |
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| Cheerful schoolboy sits in a chemistry classroom. The smiling guy on the chair rejoices and raises his hands up. Blackboard with written chemical formulas. Studying exact sciences at school |
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