Hand writes "Know the rules!" on blackboard

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Size: 5631px × 3754px
Photo credit: © Robert Kneschke / Alamy / Afripics
License: Royalty Free
Model Released: Yes

Keywords: advice, apprenticeship, arm, blackboard, chalk, chalkboard, concept, conditions, drawing, education, ethically, ethics, hand, law, method, morale, morally, politics, presentation, red, regulation, regulations, reminder, rules, school, seminar, training, university, wall, write