万能七码公式

简介：Su Can was drowsy in this mathematics class. Teacher He Jun was chattering about various mathematical formulas and theorems on the podium. The melodious sound continued to enter his ears and became a hypnotic variation. He yawned three times in a row. After that, he was completely defeated - using the cover of Lao Gao's stack of books, he discussed his life ideals with Duke Zhou.