Advanced level. According to the English introduction of Yilin version, it is more difficult than the ordinary version. The content is very different, so it is a high level. Yilin English is a senior high school English textbook published by Yilin Publishing House and approved by the Ministry of Education on 20 19. Among them, the compulsory textbooks are divided into Volume I, Volume II and Volume II, edited by Professor Wang Shouren, a professor and doctoral supervisor of Nanjing University.