They found this site at the edge of a desert in Turkmenistan, in central Asia, where a series of mounds rise up from the plains.

他们在中亚的土库曼斯坦的沙漠边缘发现了这个遗址，那里有一系列的山丘从平原上隆起。

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In many semiarid areas there is also a lower timberline where the forest passes into steppe or desert at its lower edge, usually because of a lack of moisture.

在许多半干旱的地区中，同样存在树带界限的下限区域；在这片区域之内，由于缺乏水分，森林下沿区域的植被通常会逐渐变成干草原或沙漠。

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Engineer Glen Dash says his team used a new measuring approach that involved finding any surviving remnants of the casing in order to determine where the original edge was.

工程师格伦·达什说，他的团队使用了一种新的测量方法，包括寻找任何幸存下来的外壳残余物，以确认金字塔最初的边界位置。

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The October 2011 system errors at Direct Edge exchanges where, in just over four minutes, the exchanges caused about 27 million shares of excess trading.

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It is a remarkable demonstration of the American capacity for creativity and innovation and leadership, and a model, really, for that kind of economic activity that we want to see in other cutting-edge industries in the United States where jobs can be created in America and kept in America.

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Not having Stevens in the Senate next year would give Democrats an edge in winning coveted seats in a chamber where neither party has a majority.

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