在线人工计划网简介：Repairing the 400-mile Great Wall is a major project that requires the use of hundreds of thousands of people. It cannot be done by relying solely on the capital. It must involve the people of Baoding, Xuanhua, and even Datong, Shanxi.
Repairing the 400-mile Great Wall is a major project that requires the use of hundreds of thousands of people. It cannot be done by relying solely on the capital. It must involve the people of Baoding, Xuanhua, and even Datong, Shanxi.
