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1·Death valley is this desert plain, a dry lake bed in California surrounded by mountains and on the desert floor these huge rocks, some of them hundreds of pounds.

死亡谷是一片沙漠平原，是加利福尼亚的一个干涸的湖床，四周群山环绕，在沙漠的地面上有巨大的岩石，有些重达数百磅。

2·At this lake, the lake bed grows as water level drops.

在这个湖泊，随着水位下降，湖床升高了。

3·Gray and white materials within the lake bed are exposed sediments and salt crusts.

河床内部的灰色和白色物质显示出是沉积物和盐结层。

4·Earlier images of Gusev crater taken from the air seemed to scream with evidence of an ancient lake bed.

早些时候在空中对古谢夫盆地拍摄的图像，就像是在对人们大声宣布那里是一个古代湖床。

5·Now it's less than a tenth of that size. Left behind are 15, 000 square miles of salty, toxin-laden lake bed.

如今，它的面积已经不到原来的十分之一，只留下一万五千平方英里含盐和毒素的湖床。

6·Their existence is now marked by the former lake bed, a flat area covering parts of North Dakota and Minnesota.

它们的存在，正标志着由前湖床，一个单位面积的部分，北达科他和明尼苏达。

7·On a drying lake bed in Victoria, a farmer in 2007 alerted scientists to a major find: well-preserved tracks of a Diprotodon.

2007年一位农民警觉地告诉科学家，在澳大利亚维多利亚一条干涸的河床上有重大发现：多个保存完好的双门齿兽的足迹。

8·Texas State Park police officer Thomas Bigham walks across the cracked lake bed of O. C. Fisher lake in San Angelo, Texas.

在德克萨斯州圣安格洛市的费舍尔湖，德州公园警察托马斯·比格姆走过干裂的河床。

9·Sierra Nevada as a backdrop, unique erosion formations called sand tufa stand like giant cauliflower stalks in a dry Arizona lake bed.

伴随白雪披上内华达山脉作背景，独特的侵蚀构成沙石灰华站在像巨大的花椰菜秸秆在亚利桑那州的干燥的湖床。

10·With the snow-draped Sierra Nevada as a backdrop, unique erosion formations called sand tufa stand like giant cauliflower stalks in a dry Arizona lake bed.

伴随白雪披上内华达山脉作背景，独特的侵蚀构成沙石灰华站在像巨大的花椰菜秸秆在亚利桑那州的干燥的湖床。