line chalkboard icon isolated yellow background school blackboard sign colorful outline concept vector |
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| navigate by keyword : art back background banner billboard blackboard blank board business chalk chalkboard class classroom color colorful concept contour copy design dirty education empty flat frame graphic icon illustration isolated learning lesson line linear lineart object old outline retro rub school sign space study teacher teaching template university vector wood wooden write |
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| Line Chalkboard icon isolated on yellow background. School Blackboard sign. Colorful outline concept. Vector Illustration. |
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