In April of this year, a dust storm that originated in China and Mongolia took a six-day journey across more than ten thousand kilometers of sea and open land to Arizona in the United States.
今年四月，源自中国大陆及蒙古内陆的沙尘暴，在六天中跨越了一万多公里的海洋与空旷陆地，最后到达美国亚利桑那州。
This astronaut photograph illustrates three open-pit mines located west-northwest of the town of Green Valley, Arizona.
这张太空照片为我们展示了位于亚利桑那州绿谷镇（GreenValley，位置见文末图）西部及西北部的三个露天矿。
This astronaut photograph illustrates three open-pit mines located west-northwest of the town of Green Valley, Arizona.
这张太空照片为我们展示了位于亚利桑那州绿谷镇（GreenValley，位置见文末图）西部及西北部的三个露天矿。
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