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Title
Symbol of human with speech bubble on blackboard #150639772
Description
Symbol of human with speech bubble, classroom, billboard, seminar, chalkboard, green, cloud, concept, blackboard, data, lesson, plank, idea, abstract, learn, illustration, icon, add, bulletin, frame, notice, design, conversation, student, school, teach, university, banner, education, elementary, wooden, information, background, memo, drawn, college, lecture, note, message, highschool