The language of selected works is both standard and elegant; the length is about 2000 words. There are about 8000 new words in the book. In terms of grammar, distinguishing Para synonyms are stressed, as well as explanation of commonly used sentences or words. The exercises are novel and practical, with a large amount. There are nice reading materials after each text, attached exercises for strengthening students' understanding, which can also be convenient for teachers to use. After studying the three volumes, level 11 of HSK can be expected to reach.