The second book. Russian is only CET-4 and CET-6, sophomore year, CET-4 and senior year. The second volume of college Russian has passed CET-4, and all of them have passed CET-8. Including "Introduction to Russian": this is a textbook suitable for beginners to learn Russian, including basic grammar, vocabulary, listening, speaking, reading and writing. Russian-Chinese Bidirectional Dictionary is a reference book to help learners find Russian words and translate them, which can help students enlarge their vocabulary and improve their translation ability.