Human hand drawing brain and open book on blackboard. Education concept

Businessman hand with chalk draws education process sketch on chalkboard. Freehand white chalk illustration on blackboard. Human brain and open book symbols. Brainstorming business ideas concept

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圖片庫的Businessman hand with chalk draws education process sketch on chalkboard. Freehand white chalk illustration on blackboard. Human brain and open book symbols. Brainstorming business ideas concept 圖片 Image 133842335.

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Businessman Hand With Chalk Draws Education Process Sketch On Chalkboard. Freehand White Chalk Illustration On Blackboard. Human Brain And Open Book Symbols. Brainstorming Business Ideas Concept 免版權照片，圖片，畫像及圖片庫. Image 133842335.

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Businessman hand with chalk draws education process sketch on chalkboard. Freehand white chalk illustration on blackboard. Human brain and open book symbols. Brainstorming business ideas concept

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