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 hesitated for a moment, then asked, "You said... could he be from many years in the future","Yan Shu was very intelligent, perhaps he could find a way."。