You can't. Wan Wei is an institution that focuses on senior high school entrance examination, college entrance examination and PISA. It can't help junior college students to learn by collecting materials suitable for propositions in real time. Wan Wei takes "proposition is teaching" as the concept, takes stock of the practice preparation methods of world famous teachers, organizes teaching and research exchanges among famous teachers, and improves the teaching quality. 20 17 Up to now, more than 1000 public welfare preparatory meetings have been held.