Over the last 21 years, South Korean teacher Cho Sung-hye has contributed much to the friendship between the people of her country and ChinaA remarkable South Korean teacher took up residence in Hefei, Anhui province, at the urging of her young son and never looked back竞博官方app"Nowadays all the primary schools in my country have made Chinese-language courses available to students," said Cho, who was believed by some local media to have given the strongest push to the achievementIt was the first primary school in the country to do so"At the peak, I had竞博官方app 21 relatives living here, and there are still 12 of them now," Cho saidFor the last five years, the air has been clearing up