沽源县

沽源县	Gū yuán xiàn	Guyuan county in Zhangjiakou 张家口, Hebei
沽	Gū	abbr. for Tianjin 天津 (also 津沽)
沽	gū	to buy / to sell
沽源	Gū yuán	Guyuan county in Zhangjiakou 张家口, Hebei
源	yuán	root / source / origin
县	xiàn	county