Traveling Frog: I Have Unlimited Exchanges

Liu Yu traveled through Blue Star and obtained the Traveling Frog Trading System, which enables unlimited trading. Meng Zhengfei: "Mr. Liu, can you get a photolithography machine? I'm blocked by Mi Li State's technology. You decide the price!" Liu Yu: "Wait a minute." After saying that, Liu Yu went to the small shop downstairs and bought a bottle of Red Star Erguotou and a pack of Blue Wolf for 20 yuan, and put them into the exchange. Mining Tycoon: "Mr. Liu, can you get high-purity silicon?" Liu Yu: "How much do you want?" After speaking, Liu Yu put the 1990 editions of the four major classics on the bookshelf into the exchange. The next day, Liu Yu looked at several photolithography machines, mountains of high-purity silicon, and biochemical armor in the warehouse... "The goods have arrived, please pay!" Rice Country: "We will land on the moon again and go to the rich sea to collect helium 3! By then we will control global energy!" Liu Yu: "Oh..." After landing on the moon, Mi Liguo was dumbfounded... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.