Ключевые слова: academic, background, book, business, classroom, closeup, college, communication, copy, course, dictionary, education, english, flag, foreign, information, international, kingdom, knowledge, language, learn, learning, lesson, library, linguistic, object, open, paper, polyglot, read, red, school, space, student, study, studying, table, teach, text, textbook, training, travel, united, university, vocabulary, wooden,