Ключевые слова: action, afraid, answer, banner, blackboard, business, chalk, chalkboard, change, corporate, correct, correction, danger, delete, education, erase, error, experience, fail, failure, fallacy, false, gaffe, idea, inaccuracy, learning, mishandle, mistake, misunderstand, note, object, omission, oversight, problem, project, risk, sad, slip, solution, sorry, stress, studying, success, task, tool, trouble, word, work, worry, wrong,