Doyouknowasayingabouttheswanfeather(天鹅羽毛)? Thissayi...
问题详情: Doyouknowasayingabouttheswanfeather(天鹅羽毛)? ThissayingcomesfromahistoricbookcalledLuShi;Accordingtothestory,aTangDynastyofficial(唐朝官员)inYunnanwantedtoshowhisrespecttotheemperor.Hesenta...