Many Namibians are subsistence farmers who live in the arid borderlands.
许多纳米比亚人都是自给自足的农民，居住在干旱的边境地区。
Twenty million years ago, Idaho was not the arid place it is now. Rather, it was warm and damp, populated by dense primordial forest.
2000万年前，爱达荷州不像现在这样干旱。确切地说，它那时温暖潮湿，生长着茂密的原始森林。
Regularly flowing rivers and streams that originate within arid lands are known as "endogenous".
起源于干旱地区的流动性河流和溪流通常被称为“内源河流”。
These rivers and river systems are known as "exogenous" because their sources lie outside the arid zone.
这些河流和河川系统被称作“外源河流”，因为它们的源头位于干旱地区之外。
Some amphibians adapt to arid environments by completing accelerated development with resting stages deep underground.
一些两栖动物通过在地下深处的休眠期内完成加速发育以适应干旱环境。
Along the way, we despoiled most of the land we worked, often turning verdant, natural ecozones into semi-arid deserts.
一路上，我们破坏了大多数我们曾经耕作过的的土地，经常把翠绿的自然生态区变成了半干旱的沙漠。
Such programs are much needed because in many arid lands there is only a vague idea of the extent of groundwater resources.
这样的计划是非常必要的，因为在许多干旱地区，我们并不清楚其地下水资源的范围。
Groundwater commonly collects in stream drainages but may remain entirely beneath the surface of dry stream-beds in arid regions.
地下水通常聚集在河流流域，但在干旱地区，地下水也可能完全保留在干涸河床的表面之下。
In arid and semiarid regions, on the other hand, the small number of lakes and the great distances between them reduce the possibilities for correlation.
另一方面，在干旱和半干旱地区，湖泊数量少，湖泊之间距离远，减少了相互关联的可能性。
The southern frontier of the desert was far to the north of where it is now, while semiarid grassland and shallow freshwater lakes covered much of what are now arid plains.
过往沙漠的南部边界比现在的边界更靠北，而半干旱的草原和较浅的淡水湖泊覆盖了现在干旱平原的大部分地区。
The United Nations Environment Programme and the World Bank have funded attempts to survey the groundwater resources of arid lands and to develop appropriate extraction techniques.
美国国家环境总署和世界银行开始拨款并着手调查干旱地区的地下水资源，以开发合适的开采技术。
Arid lands, surprisingly, contain some of the world's largest river systems, such as the Murray-Darling in Australia, the Rio Grande in North America, the Indus in Asia, and the Nile in Africa.
令人惊讶的是，干旱地区拥有着世界上最大的一些河流系统，如澳大利亚的墨累-达令河、北美的里奥格兰德河、亚洲的印度河和非洲的尼罗河。
The areas that are now desert were, like all arid regions, very susceptible to cycles of higher and lower levels of rainfall, resulting in major, sudden changes in distributions of plants and animals.
那片现在是沙漠的地区和所有干旱地区一样，对降雨量相对更大或更小的周期极为敏感，因此那里的动植物分布发生了巨大且迅速的变化。
Insects, birds arid fish tend to be the creatures that humans feel furthest from.
昆虫、鸟类和鱼类往往是人类感到最没有亲切感的生物。
Distribution of glires in arid regions of China is studied.
研究大沙鼠在中国干旱地区的分布。
Native Americans adapted the arid desert southwest.
美洲原住民适应了西南部干旱的荒原。
Guo said, "In my lifetime, I have seen some arid weather."
郭说：“我一生中见识过一些干旱天气。”
There are extreme arid regions where only the fittest survive.
这里是极端干旱地区，只有适者能够生存。
The next battle will be rehabilitating more arid areas of China.
下一场战役是恢复中国更干旱的地区。
In the arid north and west of the country that figure falls to a tenth.
在该国干旱的北部和西部，这一数字降到了十分之一。
A lingering drought has pushed this already arid region to a water crisis.
持续旱情使得本就干旱的该地区面临一场水危机。
New Mexico is a land of high, arid desert and it has a beauty of its own.
新墨西哥是一个地势高贫瘠的沙漠，具有其独特的美。
In arid countries such as Libya or Saudi Arabia, that figure is close to 100%.
在利比亚、沙特阿拉伯这样的干旱国家，这些数据接近100%。
Ascension was an arid island, buffeted by dry trade winds from southern Africa.
由于受南部非洲干燥信风冲击，阿森松只是一个干旱的小岛。
Many of these areas are arid and alternative sources of water are not available.
这些地区许多地方干旱缺水，没有可替代水源。
If you move somewhere dry and arid, find a moisturizer that's more hydrating.
如果你到了气候比较干燥的地方，就需要保湿效果好的保湿剂。
The arid region was 11, 000 tons short of its expected cereal productionlast year.
去年，干旱区的谷物产量比预计产量少了11 000吨。
Because water is usually free, thirsty crops like alfalfa are grown in arid California.
因为水普遍免费，干旱类作物，比如苜蓿就生长在干旱的加州。
The meadows, instead of looking lush and strewn with flowers, are now actually rather arid.
草地没有看上去苍翠繁茂，鲜花盛开，反而变成了不毛之地。
The meadows, instead of looking lush and strewn with flowers, are now actually rather arid.
草地没有看上去苍翠繁茂，鲜花盛开，反而变成了不毛之地。
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