排列三两码和差计算公式

简介：In the quiet night, the hoofs of horses stepped on the bluestone road, making a crisp sound. A carriage appeared at the back door of the Chengguo Palace. The carriage stopped, and the driver jumped out of the car. He looked carefully to make sure that no one was there. He went up to the steps and knocked softly on the door of Duke Chengguo's mansion.