Thib 9 Thoob Ntiaj Teb Qos Suav muaj los yog Yanqing County ntawm Beijing City, Suav
David Thompson, Thawj Tswj Hwm ntawm World Potato Congress Inc., tsis ntev los no tshaj tawm tias Lub Nroog Yanqing, Beijing City, Tuam Tshoj, tau raug xaiv los ua ...