Double-qualified classes can connect two different cities. For example, during the Double Eleven, I joined forces with Beijing at the opening ceremony in Nanjing and had a vivid lesson.

Ladder reading adopts the mode of double-teacher classroom teaching, which is also very novel for students. When they study, they are curious about the uniqueness of the classroom and have greater interest in the classroom. Interest class can effectively stimulate students' enthusiasm, which can not only solve the problem of weak interaction in online education, but also improve students' efficiency.

Hope to adopt, thank you!