Ключевые слова: background, board, book, books, chalkboard, class, classroom, closeup, college, computer, desk, device, different, education, equipment, exam, green, group, handbook, hardcover, indoors, information, internet, knowledge, laptop, learning, lesson, library, literature, many, notebook, novel, object, online, page, paper, read, reading, school, schoolbook, stack, story, study, studying, technology, text, textbook, university, white, wisdom,