A person in the Song

“I can't understand it. What is interesting about this physical experiment, chemical foundation reaction, elementary school ancient poems, must-memorize 100 Chinese geography, nature and science... Some characters are unclear, and there are large characters.”,Zhao Zheng thought for a moment, and finally nodded: "Summon Yan Shu.",Yan Shu glanced at the people behind him and spoke to Zhao Jun in a guiding manner.。