Ключевые слова: academic, advertising, alphabet, backdrop, background, banner, blank, business, character, classroom, color, colorful, communication, concept, course, development, earth, education, educational, elearning, empty, english, globe, important, international, kid, knowledge, language, learn, lesson, letter, message, multicolor, object, online, primary, school, space, stand, strategy, student, study, teenager, text, type, vocabulary, wooden, word,