百家了7囗公式简介：Although it is still called the Three Sides, the current Three Sides are different from the past. In the past, the Three Sides referred to Yansui, Guyuan, and Gansu, but now they are Gansu, Ningxia, and Qinghai.
Although it is still called the Three Sides, the current Three Sides are different from the past. In the past, the Three Sides referred to Yansui, Guyuan, and Gansu, but now they are Gansu, Ningxia, and Qinghai.
