Large dunes make access to the beach difficult in places.
在有些地方大沙丘使得靠近海滩很难。
We walked to the furthermost point and then sat on the sand dunes.
我们走到了最远点，然后坐在沙丘上。
The sea may rise or the land may fall; either way the sand dunes will be gone in a short time.
海平面可能会升高，或者陆地可能会下降；不论发生哪种情况，沙丘都将很快消失。
Second, as you know, sand dunes contain other types of particles, besides sand, including clay and silt.
第二，正如你所知，除了沙粒，沙丘还含有其他类型的颗粒，包括粘土和淤泥。
Now, when the rain fell, water ran down the sides of the dunes, carrying clay and silt particles with it.
如今降雨的时候，雨水会带着黏土和泥沙颗粒从沙丘两边往下流。
They're up to a kilometer long, but only a few meters wide, and they're scattered along the desert floor, in valleys between the dunes.
我们所看到的石灰岩层高达一千米，而宽却只有几米，沿着沙漠底部和沙丘间的山谷分布。
During the second rainy period, the dunes were kind of chopped up at the top, full of hollows and ridges, and these hollows would've captured the rain right there on the top.
在第二次雨季，沙丘的顶部被砍伐了，到处都是凹洞和山脊，这些凹洞正好在顶部吸收了雨水。
The geologic story the Opportunity read there always spoke of an ancient martian wasteland of windblown dunes pocked by the occasional acid-laced puddle.
机遇号对于火星地理结构的解读总是揭示出一个存在于远古火星的，来自于海洋性酸股介水坑的废弃风沙之地。
The synsedimentary deformation structures are common in eolian dunes, such as brecciated foresets, drag folds and overturned folds.
风成沙丘普遍存在角砾前积、拖曳褶皱和倒转褶皱等同沉积变形构造。
Ribbons of dunes trap the rains.
带状沙丘困住了雨水。
To something off behind the dunes.
沙丘后面的什么东西上。
In the morning the cars are in small dunes.
早晨车辆都在雪丘堆上。
Rolling waves were framed by miles of Sahara-like dunes.
有的照片是滚动的海浪被撒哈拉沙漠般绵延数里的沙丘拦住。
In the northwest, the dunes are interrupted by cityscape.
在西北方向，沙丘则被城市所截断。
It is backed by sand dunes on which two shaggy camels rest.
两头毛茸茸的骆驼背靠沙丘休憩。
The coastal plain consists mainly of sand dunes and polders.
沿海平原主要包括沙丘和低田。
The ripples it shows are sand dunes more than 100 metres high.
上面的波纹显示，沙丘高度超过100米。
Wild camels and sand dunes in empty southeast quarter of Qatar.
卡塔尔荒凉的东南部的野骆驼及沙丘。
The air is cool and sweet, and the dunes glow under the oval moon.
空气凉爽，带着甜味。沙丘在椭圆的月亮下发出微光。
When we reached the dunes, the inspector hadn't found anything yet.
当我们到达沙丘时，所长还没有挖掘出什么来。
Winds push the sand dunes eastward past Har Nuur and the nearby mountains.
风吹得沙丘向东推进，越过哈尔湖和附近的山区。
They are actually dark streaks of sediment on the downwind side of the dunes.
他们全是沙丘顺风面条纹状暗色沉积物。
This journey marks my first visit to the palatial sand dunes of Sossusvlei.
这次旅行标志着我首次访问壮丽的索苏斯维雷沙丘。
Ahul held on tightly to the giraffe as it raced across sand dunes and past trees.
长颈鹿跑过沙丘、穿越树林时，阿哈紧紧抓着长颈鹿。
These large dunes facing the river valley are promoted as the highest dunes in the world.
这些面朝河谷的巨大的沙丘被认为是世界上最高的沙丘。
Strong winds create huge sand dunes near the water, some of which are partly submerged.
强风使得水面上逐渐形成巨大的沙丘，其中一部分沙丘被淹没在水里。
All of the sand dunes, however, form part of a larger dune field nearly encircling the lake.
所有沙丘形成了一个更大的沙丘，几乎包围了整个湖泊。
All of the sand dunes, however, form part of a larger dune field nearly encircling the lake.
所有沙丘形成了一个更大的沙丘，几乎包围了整个湖泊。
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