A 26-year green promise: cross-ocean friendship blooms in Maowusu sandy area

A touching video recently went viral online. In it, Yin Yuzhen, a national model worker in China who has dedicated decades to combating desertification in Maowusu sandy area, north China's Inner Mongolia autonomous region, sends a heartfelt message in search of an American friend, hoping he would see the video and come back to China to visit.

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