The giant sand dunes are up to 300 m high.

巨大的沙丘高达300米。

There are many beautiful sand dunes around Crescent Spring.

月牙泉周围有许多美丽的沙丘。

The ripply sand dunes stretched out as far as the eye could see.

波纹状的沙丘延伸到视线所及之处。

Today I finally saw real sand dunes.

今天终于看到了真正的沙丘。

Eurasian thistle growing in sand dunes and dry chalky soils.

在沙丘或干旱白垩土壤中生长的欧亚蓟.

The Spot: Great Sand Dunes National Park and Preserve, Colorado

拍摄现场：科罗拉多的大沙丘国家公园和自然保护区

Camel-colored sand dunes ripple along the lake’s northern shore.

骆驼色的沙丘沿着湖泊的北岸滚滚而过。

Some of the sand dunes were as high as sand dunes in the Thar dessert.

有些沙丘和塔尔沙漠中沙丘一样高。

Ergs are vast expanses of sand dunes like this area in Oman.

尔格是巨大的广阔的沙丘就像这样的地区在阿曼.

The topography was changing and suddenly sand dunes started to appear.

地形在不断变化，突然沙丘开始形成。