三组七码必中一组怎么缩到四码呢

简介：Dong Chaofu found a high place to rein in his horse, carefully pulled out a single tube from his arms, stretched it, and looked in the direction of the Qinglong River - this was a telescope given to him by His Royal Highness, but he usually rarely Using it, he still believed more in direct viewing with his own eyes rather than through this monocular.