在19世纪80年代，美国中部的高地平原大草原是由农民和牧场主开垦的。

The vast grasslands of the High Plains in the central United States were settled by farmers and ranchers in the 1880s.

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“高地平原，”他父亲在前排座位说。

"High plains," his father said from the front seat.

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这张卫星图片大约在当地时间早上7:45拍摄，这时太阳依然停留在地平线以下，从而我们可以看到，该地的地形外廓被投影到其高地的西侧。

This astronaut photograph was taken at approximately 7:45 a.m. local time, when the Sun was still fairly low above the horizon, leading to shadowing to the west of topographic high points.

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这张卫星图片大约在当地时间早上7:45拍摄，这时太阳依然停留在地平线以下，从而我们可以看到，该地的地形外廓被投影到其高地的西侧。

This astronaut photograph was taken at approximately 7:45 a.m. local time, when the Sun was still fairly low above the horizon, leading to shadowing to the west of topographic high points.

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