柯林斯词典potash /ˈpɒtˌæʃ/ 1. N-UNCOUNT Potash is a white powder obtained from the ashes of burned wood and is sometimes used as a fertilizer. 碳酸钾 返回 potash剑桥词典a white powder containing potassium that is put on soil to make crops grow better 钾碱，碳酸钾，草碱 返回 potash