r country."With a cold snort, Li Chen looked at Yelu Guzanqi and said indifferently, "Besides, the people of the Qin Dynasty number over ten million. One person's spit could drown your Liao Kingdom. T...轉碼失敗！請您使用右上換源切換源站閱讀或者直接前往源網站進行閱讀！ command, but the development of gunpowder requires a large number of experiments, and the application for materials is afraid that it cannot avoid the eyes and ears of others..."Li Chen, who had alre...