科学家学生在黑板上解公式 Scientist student solving formulas on a blackboard

穿着长袍的年轻理科女生在白板上写公式，转身直接对着镜头微笑。

Young female science student in a robe writing formulas on a whiteboard, while turning around and smiling directly at the camera.

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Woman Medium Shot International Womens Day Portrait School University Scientist Teacher Math Blackboard Algebra

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