After about a year in Hefei, Park took a job in the United States and tried to persuade Cho to give up HefeiWhat three words would you use to describe China today? Revitalizing, changing, confidentE世博esballIn 2000, with Cho's help, the Banyang Elementary School - in which she had studied - began teaching Chinese"I told him that we had just started here and we should at least spend five years in the city before judging whether we should move to another place," Cho said"There were even South Korean businessmen who intended to invest in Hefei but decided to invest in Shanghai and Nanjing instead, as they found the two cities to be more developed," she addedE世博esballChina is a big country, so officials have to collaborate with each other well