不足的地方是价格太贵 Disadvantage is too expensive
我是说，它们使得阿芝克特人能够在农田不足的地方种植大量可食用作物。
I mean, they enabled the Aztecs to grow plenty of food in an area without much available farmland.
但是即使从他们所掌握的数据来看，这种关系明显是一个重要的因素，在其他所需记录不足以证明这一关系的世界上其他地方，这一因素也可能得到应用。
But even from the figures they present, it is clearly an important factor, and one that is likely to apply in other parts of the world where the records needed to prove it are not so good.
然而，也有一些国家正在解决多年来每况日下的基础设施，部分原因是它们的运水能力不足，或不能向需要的地方送水。
But some are also dealing with infrastructure that has deteriorated over the years, partly because not enough water has flowed through it, or that does not deliver water where it needs to go.
应用推荐