landscape across a large part of the state,

原始风貌占了整个州的大部分地方
you'd be amazed that anything could

你就会惊讶于除了仙人掌
grow there at all except cactus or things like that.

其他的所有作物都不能生长在那里
The fact that you can grow

事实上你可以在亚利桑那州
lettuce in Arizona is made possible by irrigation,

种植莴苣的原因主要是因为灌溉的存在
and that's made possible in part by government underwriting of the water.

而使那成为可能的原因是政府认购了水源
You can imagine that it costs a

你可以想象到这会
fair amount of money to get water to a field like this,

花很大一笔钱把水运到地里
how quickly it would evaporate in

以及在亚利桑那州干燥的天气下
that dry Arizona climate, the hot, dry Arizona climate.

水蒸发的多快
There are a lot of places where the water just evaporates into the air.

有很多地方水直接蒸发为水蒸气
The cost is really quite high to irrigate a crop like that,

在这种情形下灌溉作物的成本的确很高