- For insects the bombardment can be very severe indeed.
而昆虫则得遭受猛烈“炮火”的轰击 - The only escape is below the surface.
唯一的藏身之处当然是在沙子下面 - As the winds rise and fall, swallow and eddy
随着风的起落、侵蚀和旋绕 - so they pile the sand into dunes.
沙子被堆成了一座座沙丘 - These sand scenes can be hundreds of miles across.
这些沙漠布景可宽达数百英里 - In Namibia the winds have built some of the biggest dunes in the world.
在纳米比亚 风塑造了 一些世界上最大的沙丘 - Star dunes like these can be 300 metres high.
这些巨型沙丘高达300多米
so they pile the sand into dunes. 沙子被堆成了一座座沙丘
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