Ключевые слова: abc, academic, alphabet, background, black, class, college, communication, concept, copy, course, dark, education, educational, english, foreign, knowledge, language, learn, learning, lesson, letters, linguistic, made, nobody, object, pile, polyglot, school, space, speak, student, study, studying, table, teach, teacher, teaching, text, translate, university, vocabulary, wood, wooden, word,