In Historical Records,three chapters with difficult words and sentences are in controversy,namely,in the chapter of"the Biography of Lu Zhonglian","Tao Wei"(generally thought as one name)refers to two persons:Wei Ran and Shang Yang,not others as previously believed;in the chapter of Ping Zhun Shu(literally,Governance and Cultural Re-cords of Ping Zhun region),"Guan Bu"in the sentence"Chu Da Nong Guang Yan Tie Guan Bu Duo(generally means liter-ally,in the beginning,there are some officials in charge of the business of salt and iron)"should be interpreted as"Guan Qian(official currency)"rather than"Guan Yuan Fen Bu(namely the subject verb structure:official being appointed in dif-ferent places);in the chapter of"Wei Qi,Marquis of Wu'an","Xi(generally means happy)"in the sentence"Jun He Bu Zi Xi(Why aren't you happy?)"should be interpreted as"satisfied",so the interpretation of this sentence should be"What are you dissatisfied?"