C651 Centralized instruction

Hearing Mu Youqian's question, Bai Xiaohei also stayed silent for a long time. He was only thinking of opening a new course to increase the content of the students' classes, but he was the only one who seemed to understand all of this in this world.

In the end, Bai Xiaohei and Mu Youqian discussed with each other for a long time and finally found a way that they didn't think of