回复 :"When the eldest of my two sons was in the third year of middle school, his history teacher, who had some experience in China, suggested the students go to live there and have a close look at the old country," Cho said

回复 :"It was true during the first 30 years of China's opening-up while China was attracting foreign investment, pollution was an issue," he said

回复 :Similarly, the annual per capita income in impoverished rural areas has grown to 10