它们是一种啮齿类动物，在美国西部和墨西哥草原的地上挖洞。
They're a type of rodent who, who burrow in the ground in the grasslands of the western United States and Mexico.
现在在美国西部的一些地方有一些非常有趣的洞穴，尤其是在国家公园里。
Now there are some pretty interesting caves in parts of the western United States, especially in national parks.
然而，在20世纪80年代后期，一些科学家在美国西部的内华达探索魔鬼洞，这基本上是一个广阔的充满水的洞穴，并且远离海洋。
However, in the late 1980s, some scientists were exploring Devil' s Hole, which is basically an extensive water-filled cave, far from the ocean, in Nevada2, in the western United States.
在美国西部的许多森林里那样做就像在活火山边上建房子一样。
Doing that in many of the forests of the western US is like building homes on the side of an active volcano.
在14世纪和15世纪，许多位于现在美国西南部的西部普韦布洛定居点可能拥有明显的等级组织结构。
In the fourteenth and fifteenth centuries, many Western Pueblo settlements in what is now the southwestern United States may have possessed distinctly hierarchical organizational structures.
由于他是在中西部发表演讲，他决定先说明美国历史上最严重的地震不是发生在加利福尼亚或阿拉斯加，而是1811年在密苏里州的新马德里。
Since he was speaking in the Midwest, he decided to begin by noting that the most severe earthquake in American history took place not in California or Alaska but at New Madrid, Missouri in 1811.
牛仔已经在美国西部和西南部生活和工作了三个多世纪，他们是美国著名的象征，所以你看那些五六十年代的好莱坞牛仔电影时，你看到的是一份工作。
Cowboys have lived and worked in the west and southwest of the United States for over three centuries and they are a famous symbol of the US. When you watch those old Hollywood cowboy films from the fifties and sixties, you see a job.
阿帕奇（Apache）公司是一家小型的美国公司，在埃及西部沙漠拥有最大特权。15年前它在这片区域风险投产，如今每天的产量大约是15万桶。
Apache Corporation, a smaller American firm with the biggest concessions in Egypt’s western desert, took a chance 15 years ago and now pumps some 150, 000 barrels a day.
在这段视频中，几名巡逻的士兵在一家西部银行附近停了下来，伴着美国电子乐流行歌手凯莎的热曲《跑趴滴答》，竟翩然起舞。
The video shows the soldiers stopping a routine patrol in the West Bank to dance to American electro-pop singer Kesha's hit "Tik Tok."
美国探险家史蒂夫-福塞8月5日在澳大利亚西部的沙漠中启动了他的热气球，开始了他若干次只身驾驶热气球环游世界失败后的又一次尝试。
US adventurer Steve Fossett on Sunday launched his balloon from the Western Australian desert in another attempt to become the first to fly a balloon solo around the world.
甚至是在温暖的阳光地带（指美国西部及西南部 从弗吉尼亚延伸带加利福利亚一带--译者注），许多乡村地区也在流失人口。
Even in the sunbelt, however, many rural areas are losing population.
人们可以想象他们现在是在美国旧西部的一个小镇上，在百万牛仔酒吧，他们不是坐在椅子上，而是坐在马鞍上，仿佛他们就像是在骑马一样。
People can imagine they are in a town in the Old West. At the Million Dollar Cowboy Bar, instead of chairs, they can sit on saddles as if riding a horse.
产权可以在意愿的买家和卖家之间进行交易，从而使水的使用实现从低价值到高价值的重新分配，而这一措施在美国西部、智利以及南非已初见成效。
These can be traded between willing buyers and willing sellers to reallocate water from low-value to high-value USES, and they have proved their worth in the American West, Chile and South Africa.
在1948年至2004年间，位于美国西北部地区的哥伦比亚河的流量减少了约14%，这主要是由于降水量减少以及美国西部用水量增加。
The Columbia River in the us Northwest lost about 14 percent of its volume from 1948 to 2004, largely because of reduced precipitation and higher water usage in the west.
当时有三个人组建了一个名叫“驿马快信”的公司，负责在美国西部运送邮件和新闻。
Three people started a company called the Pony Express. The Pony Express carried mail and news throughout the West.
这家新公司完全控制了美国西部的铁路运输业，这样一来，在西部的铁路运输就不存在任何的竞争了。
The new company would have complete control of rail transportation in the American West. There would be no competition.
闲适的夏天对于美国的消防队员来说是罕有的，他们肯定战斗在西部众多的火场中。
LAZY summer days are a rarity for America's firefighters, who must battle dozens of big blazes around the west.
当然，即便是在美国，很多城市也还没有山穷水尽，在这里几十年来人们不断涌向南部和西部的大都会。
Plenty of cities are not dying, of course, even in the United States, where people have been flocking to the metropolises of the South and West for decades.
在美国西部和南部，巴士的速度已经开始有所减缓，这主要是由城市距离以及驾驶文化共同决定的。
Express bus service has been slower to catch on in the West and South, where the distance between cities is greater and the driving culture reigns.
类似的技术也在加拿大、美国和其它一些地方被开发出来，而且有些正在运行，例如在夏威夷和苏格兰西部的海上。
Rival technologies are being developed in Canada, the United States and elsewhere, and some are operating, for example, off Hawaii and the west of Scotland.
在两个大冰原之间有个裂缝，将今天的阿达斯加州、亚伯达（加拿大西部的一个省）和美国大陆连接在一起。
A gap in two large ice sheets would create a connection from lands near present day Alaska, through Alberta and into the continental United States.
美国的圣盖蒂：西部的这一地区在修复下已经可以和繁茂的非洲大草原相媲美了。
American Serengeti: the Western lands under restoration have been compared with the abundant plains in Africa.
美国旧西部牛仔的一些传统的生活方式在杰克逊山洞得以保留。
Some of the ways of the Old West cowboy are kept alive in Jackson Hole.
在当时，在美国南方，实行奴隶制是合法的，但问题是：是否允许在西部新得到的领土上实行奴隶制。
At that time, owning slaves was legal in the southern states. But the question remained: should slavery be legal in New Territories in the western part of the country?
在美国西部的一些地方，当暴雨来临时，雨水常常还没接触到地面就蒸发殆尽，当闪电击中干燥的地面时，这些地区经常发生由此而引发的灌木起火。
During thunderstorms in parts of the western United States, rain often evaporates before hitting the ground, making the region vulnerable to brush fires from lightning hitting the dry earth.
在美国西部的一些地方，当暴雨来临时，雨水常常还没接触到地面就蒸发殆尽，当闪电击中干燥的地面时，这些地区经常发生由此而引发的灌木起火。
During thunderstorms in parts of the western United States, rain often evaporates before hitting the ground, making the region vulnerable to brush fires from lightning hitting the dry earth.
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