随着人们开始争夺资源,解决社会问题的需求也越来越大。
The archaeological evidence clearly indicates, though, that Teotihuacán was the center that did arise as the predominant force in the area by the first century A.D.然而,考古证据清楚地表明,特奥蒂瓦坎是一个中心,在公元一世纪崛起成为该地区主导力量。
But why, then, does an optimal supply of money even arise as a problem?但为什么,最适货币数量会作为一个问题被提出来呢?