In Beijing Olympic Games, 38 World Records and 85 Olympic Records were broken. 　　USA　　 swimmer Michael Phelps got 8 gold medals, broke 7 World Records. 　　Jamaica　　 sprinter Usain Bolt got 3 gold medals and broken 3 World Records. With scientific development, human runs faster and faster, jump higher and higher, records are broken endlessly, human gets stronger. Challenge the utmost limit will be the theme of the world necessarily. 　　

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