line chalkboard icon isolated white and black 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 green icon illustration isolated learning lesson line linear lineart object old outline purple retro school sign space study teacher template university vector wood wooden write |
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| Line Chalkboard icon isolated on white and black background. School Blackboard sign. Colorful outline concept. Vector. |
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