Time of publication: July 21, 2020 Source: Yijun from Nanjing Civilization Net Valley, a junior high school teacher of Nanjing No. 1 Middle School. In August 2018, Gu Yijun went to Yining, Xinjiang, with 50 colleagues from his brother's school, for a year and a half of supporting education in Xinjiang at Yining No. 6 Middle School
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