Ключевые слова: ballpoint, book, cellphone, class, clean, clip, color pen, colorful, computer, creative backgrounds, design, education, efforts, electronics, exam, green, hit color, learning, lipstick, multicolor, multicoloured, originality, pen, pencil, post, progressive, results, ruler, school, score, sharpener, source material, stationery, student, teacher, the background color, tileable, watercolor pen, wrist watch,