As they travel across the Sahara, they create the biggest of all sand storms.

它们穿越撒哈拉沙漠时，造成了世界上最大的沙。

Dust storms rage across the planet.

沙在这个星球上肆虐。

The nearby city of Salt Lake City is already facing dust storms.

附近的盐湖城已经面临沙。

The word is generally used to describe the most intense dust storms, one with walls of dust that can be miles wide and thousands of feet high.

这个词通常用来形容最强烈的沙，它的沙墙可以达到数英里宽，几千英尺高。

It's bombarded by solar radiation and has dust storms that cover the entire planet, which raises the question why governments and private enterprise are spending billions of dollars on getting there.

它受到太阳辐射的轰炸，沙覆盖整个星球，这就产了一个问题，为什么府私营企业要花费数十亿美元来到这里。

It was actually a series of dust storms and droughts that came one after another.

实际上是一连串的沙干旱接踵而至。

The result was several years of massive, deadly dust storms.

结果就是持续几年、大规模毁灭性的沙。

In a dust storm, it is very difficult to see.

在沙中，人们很难视物。

Each year, huge storms form in the Sahara desert of northern Africa.

每年都会有几次从非洲北部的撒哈拉沙漠刮来的沙。

The scientists believe that a huge drought and sandstorms buried it thousands of years ago.

科学家们认为，数千年前一场严重的干旱沙将它掩埋。

At least 60 people have died in fierce dust storms in India.

至少60人在印度的剧烈沙中死亡。

Like the shaky ride during launch and landing, as well as dust storms on Mars.

比如发射与着陆时不稳定的航行，以及火星上的沙。

You could see how everything is sloped to deflect the wind from all the sandstorms.

看得出来，建筑的设计都是斜的，目的是为了抵挡沙。

Mars also gets dust devils, towering vortices of wind similar to tornadoes.

火星也有——高耸的风力漩涡，与龙卷风类似。

Sandstorms have been a major disaster for many Asian countries for centuries.

几个世纪以来，沙都是亚洲地区许多国家的主要灾害。

A black blizzard, though, isn't actually a blizzard—it's an extreme dust storm.

然而，黑色的风雪实际上并不是真正的风雪，它是一场极端恶劣的沙。

Kansas and Texas saw dust storms from the damaging winds.

破坏性大风引发的沙席卷了堪萨斯州德克萨斯州。

We get sandy yellow dust in the spring.

我们在春天有沙。

Right. Trees also help keep soil in place during storms.

是的。树木可以帮助在沙中固定水土。

The village had limited electricity and water, and was often hit by sandstorms.

村里的水电有限，而且经常受到沙的袭击。