进1退2最佳倍投方案

简介：The old man said: It doesn't have to be so serious. You only need to go to the mine thirty miles east of the village to transport the fine steel ore back to the village's blacksmith shop. Recently, there have been many outsiders in the village, and the demand for weapons is high. The manpower is too busy, and they have gone to mining and forging weapons. So, I'd like you to go there and get the ore back.