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1·My LED headlamp lit the white sand dune.

我的LED照明灯点燃了白色的沙丘。

2·It means a sand dune with a trumpet.

意思啊就是带喇叭的沙丘。

3·The treasure was buried in the sand dune.

宝藏就埋在这个沙丘里。

4·Saudi man walks across a large sand dune.

一个沙特阿拉伯男人走过一个大沙丘。

5·The nearest sand dune is less than 100 miles from Beijing.

最近的沙丘离北京不到100英里。

6·It is one of the largest sand dune fields in the United States.

它是全球最大的砂美国沙丘领域之一。

7·After eating, I hiked to Lake Michigan, and sat up on a large sand dune.

进食后，我徒步到密歇根湖和坐起来，在一个大沙丘。

8·The wind profile above the sand dune is nearly logarithmic only at night.

而沙丘的风速廓线只在晚上近于对数分布。

9·The towering ridge of a sand dune in the Arabian Desert points to the afternoon sun.

阿拉伯沙漠上一座高耸的沙丘脊指向着午后的落日。

10·The sand dune is the highest point in a flat landscape, so it offers spectacular views.

沙丘是平地上的制高点，所以上面景观很好。