Two and a half million people abandon the great plains.

二百五十万人民离开了这片广阔的原。

A severe and long-lasting drought destroyed crops across the southern Great Plains.

一场严重且持续的干旱让原南部的玉米地毁灭殆尽。

From the Great Plains to the Midwest to the Eastern seaboard and the American south, the Weather Channel says more than 300 records have been set for cold temperatures this week.

从美国中西部的原到东部沿海和南部地区，气象频报周的低温已经打破了300项记录。

And in the South West, Mexican vaqueros herded cattle across the great grass plains North of the Rio Grande over two centuries before the first Texas cowboys began their cross-country cattle drives.

在西南部，墨西哥牧牛人赶着牛群穿过里约热内卢格兰德河以北的草原，比第一批德克萨斯牛仔开始他们的越野牧牛活动早了两个世纪。

They would spend long winters by themselves on the Great Plains.

他们会独自在原上度过漫长的冬天。

In the 1850s many pioneers crossed the Great Plains. Many of them settled there.

在19世纪50年代，许开拓者穿过了原。他们中的许人在这里定居。

In time, the Sioux way of life on the Great Plains came to an end.

随着时间的推，原上苏族人的生活方式结束了。

The buffalo was the center of native Indian culture in the Great Plains.

是原印第安人文化的核心。

Claiming land on the Great Plains was easy. Building a farm there and working it was not so easy. The wide flat grasslands seemed strange to men who had lived among the hills and forests of the east.

在原上获得土地不是什么难事，但在那里建农场并在那工作却并不容易。对于住在东部山林中的人来说，宽阔坦的草原似乎很陌生。

Only a few years before, millions of buffalo lived on the Great Plains. Then railroads were built across the country. White men came to claim the grasslands.

就在几年前，还有数百万的水牛生活在原上。后来全国都修建了铁路，白人占领了草原。

And here — from the Gulf Coast region, up through the Great Plains into Canada, was the home of Plains Indian Sign Language.

这里——从墨西哥湾沿岸地区，穿过原进入加拿，是原印第安手语的发源地。

There are about a dozen locust species on Earth, and only one has been found in North America: the Rocky Mountain locust, which devastated crops across the Great Plains from 1850 to 1880.

地球上有十几种蝗虫种类，北美只发现了一种：落基山脉蝗虫，在 1850 年到 1880 年间摧毁了整个原的庄稼。

The students began the project with help from the Great Plains Food Bank.

这些学生在原食物银行的帮助下实施了这一项目。

Scientists have already used chlorophyll fluorescence to monitor harmful phytoplankton blooms, and track the effects of drought in the Amazon and Great Plains.

科学家们已经在用叶绿素荧光来监控有害的浮游植物的野蛮生长，并且还用它来追踪干旱对亚马逊和原的负面影响。

These artificial great plains are making wild grasslands amongst the most endangered habitats on Earth.

这些人造原使野生草原成为地球上最濒危的栖息地之一。

On this seasonal planet, the great plains are lands of feast and famine.

在这个四季分明的行星上，草原是盛宴与饥荒并存之地。

Once again, silence descends over the great plain.

原再次陷入一片沉寂。

The dark parts are great plains, and the bright parts are mountains.

颜色较暗的是巨的原, 而明亮的部分则是山脉。

Years of soil mismanagement in the Great Plains had turned an extended drought even more devastating, leaving huge expanses of loose soil just sitting on top of the ground.

原地区年的土壤管理不善使得持续的干旱更具破坏性，留下了片松散的土壤。

Where in our country are the Great Plains across which the covered wagons traveled?

篷车穿越的原位于我们国家的哪个地方？