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。

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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。

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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。

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They identified tiny glass shards mixed in with the muds almost 30m below the lake bed.

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By early March, the results were no longer in doubt: Curiosity had found a lake bed.

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And after one particular pass along the mud on the lake bed, there was a sudden, ecstatic moment of discovery.

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