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1·Dependence on long-distance trade also meant that the great empires of the Middle East were built both literally and figuratively on shifting sand.

对长途贸易的依赖也意味着，伟大的中东帝国无论是实际上还是象征意义上，都是建立在流沙之上的。

2·The tree belts can protect this area against shifting sand.

护林带能保护这个地区不受流沙的侵害。

3·Some measures are needed to secure the farmland against shifting sand.

需要采取措施使农田免遭流沙的侵袭。

4·Shifting sand of the ocean floor helps the sculptures evolve over time.

久而久之海底的流沙有助于雕塑的形成。

5·These tree belts effectively protect the farmland against shifting sand.

这些防护林带有效地保护了农田，使之免受流沙侵袭。

6·These tree belts protected 500,000 acres of farmland against shifting sand.

这些防护林带保护了50万英亩农田不受流沙侵袭。

7·The fencing effect of the net fence in shifting sand area also shows difference among three wind directions.

流沙区尼龙网栅栏的防沙效益亦表现出在三组不同风向上的差异。

8·I reach out my hands; grasp air - as a last resort hurdle the last few feet of the ditch onto shifting sand - catch my balance - made it!

我想抓空气是我当时唯一的办法了吧。就这样保持着过了前面几英尺的小沟，最后顺利到了流沙上，哈，我做到了，我保持住了平衡。

9·I reach out my hands; grasp air - as a last resort, hurdle the last few feet of the ditch onto shifting sand - catch my balance - made it!

我想抓空气是我当时唯一的办法了吧。就这样保持着过了前面几英尺的小沟，最后顺利到了流沙上，哈，我做到了，我保持住了平衡。

10·Therefore, how to prevent and control the shifting sand, is a technical key question, which should be solved in the sub-base earthwork.

为此如何防治流砂成为基坑土方施工需要解决的一个技术难题。

流沙

1·Some measures are needed to secure the farmland against shifting sand.

需要采取措施使农田免遭流沙的侵袭。

2·These tree belts effectively protect the farmland against shifting sand.

这些防护林带有效地保护了农田，使之免受流沙侵袭。

3·Don't approach! Don't approach the blue color seeming warm, which is actually the nightmare, the quagmire, the shifting sand and even the hell!

不要走近，不要走近那片看似温暖的蓝色，那是噩梦，是沼泽，是流沙，是地狱！