The huge area of prairie land in the U.S. became known as the “Dust Bowl.”

大规模的草地变成了干旱尘暴区，也就是美国的“黑色风暴事件”。

The wild prairie lands were not friendly to men or animals. It was a lonely land.

野生大草原对人和动物都不太友好，那是一片荒凉的土地。

That is where we find the open grass and prairie lands of the Jackson Hole area.

在这里我们可以看到杰克逊霍尔地区开阔的草地。

A large part of the Midwestern United States is prairie land.

美国中西部的很大一部分是草原。

In this book, the Ingalls family continues to move from place to place in the central prairie land of America. Laura grows older and becomes a school teacher.

在这本书中，英格尔斯一家继续从一个地方搬到美国中部大草原上的另一个地方。劳拉长大后成为了一名教师。

In more fertile spots the observer would have come to the conclusion that one of those great herds of bisons which graze upon the prairie land was approaching him.

如果这里是一个肥沃的地区，人们就会断定，这是草原上游牧的大队牛群，正在向着他这方面移动。

First, as miners poured into western Canada from the United States and other parts of the world, the extent of the unpopulated prairie lands became known.

首先， 随着矿工从美国和世界其他地区涌入加拿大西部，无人居住的草原的范围广为人知。

In the ten years that followed,100,000 people from the Middle West and the South, responding to his call, went to the Western country where they brought eight million acres of prairie land under cultivation.

此后十年间，中西部和南部的十万人响应他的号召，奔赴西方国家，耕种了八百万亩草原。

The Chicago we see today is a far cry from  what it would have looked like a little over 300 years ago; a vast tract of unspoiled  prairie land next to a huge freshwater lake.

我们今天看到的芝加哥与 300 多年前的样子相去甚远；一大片未受污染的草原， 毗邻一个巨大的淡水湖。