"Historically, it got its name because of its colour - because the water contains more mud and sand than other rivers. But now it's yellower because of human activities, " he said.
穆教授以受到水土问题影响最大的黄河流域为例说，“黄河在历史上因为含沙量高于其它河流而因颜色而得名，但如今人类活动让黄河变得更黄了。”
Can you imagine a sea of sand three times bigger than India?
你能想象一个比印度大三倍的沙海吗？
Glass, which has been made since the time of the Mesopotamians and Egyptians, is little more than a mixture of sand, soda ash and lime.
自从美索不达米亚和埃及时代以来，玻璃就已经被制造出来了，它只不过是沙子、苏打灰和石灰的混合物。
Say it in sand: There's nothing more romantic at the beach than to write your names in hearts in the sand or the words I love you.
写在沙滩上：没有什么比在沙滩上画个心形里面写上你们的名字或者“我爱你”更浪漫的事了。
Most of these streaks are darker than the surrounding sand.
这些条痕大多数都比周围的沙子更暗。
If you're new to beach running, start out on wet, firm sand — it's much easier to run on than the soft, dry sand.
如果您在沙滩上跑步是个新手，那么从湿的坚实的沙子上开始吧——这样比在柔软、干燥的沙子上简单的多。
With no bomb shelters constructed yet in the new camp, Seelaus dove for the ground, digging into the caked dirt that was more like solid mud than sand.
由于新营房还没来得及构筑掩体，西罗斯一个鱼跃扒在地上，陷入半干的污泥中。说是污泥，倒不如说是比沙子还闷实的干泥巴。
In the supermarket, he'll shout, 'Mom, I love you more than all the blades of sand on the beach!
一次在超市里，他大声说道“妈妈，我对你的爱比对玩具刀还有海滩上的沙子的爱更深！”
Our industrialists are transforming sand and oil into ever smaller and more intricate machines, a form of alchemy more wondrous than anything any alchemist ever dreamed of.
工业家正在将沙和石油转化为更为小巧、更为复杂的机器，这是一种连历史中的炼金术士做梦都无法想到的魔法。
And some, he thought, were no more than sighs, like the one he once wrote on the sand of an Irish beach for the tide to take away.
有一些，他认为只是叹息而已，就像他曾在爱尔兰海滨的沙滩上写的一首诗，他愿海潮将它带走。
Around a dozen homes in this small area were destroyed, no more than piles of rubble in the sand yesterday.
这个小小的地区就有十来间房屋被炸毁，昨天这里是满地的碎石和沙土。
There's no finer or more important word in tennis than "intense, " and it was satisfying to see Williams show sand at the Garden on Monday night. It might also be a preview of the year to come.
在网球中很难找到比“紧张”更贴切更重要的词来表达这种感受，周一晚上大威那自豪的一幕应该令人感到满足，这也许是对未来的预演。
They used special microfibers, rather than coarse bits of gravel and sand, to strengthen the cement.
他们用特殊的超细纤维来替代粗糙的砂石颗粒，以强化水泥。
The real flecks - once you know what to look for - are unmistakable. The trouble is that they are smaller than grains of sand.
一旦你知道了金粒的样子就不会错过，问题是它们比沙粒还要小。
For now it would be heavier than the sand of the sea: therefore my words are swallowed up.
现今都比海沙更重，所以我的言语急躁。
A stone [is] heavy, and the sand weighty; but a fool's wrath [is] heavier than them both.
石头重，沙土沉，愚妄人的恼怒，比这两样更重。
Their camels could no more be counted than the sand on the seashore.
他们的骆驼无数，多如海边的沙。
A deal that is not based on the best scientific evidence will be nothing better than a line in the sand as the tide comes in.
一个协议不以最佳科学证据为基础，将不亚于浪潮涌过沙滩上的一条线。
Sand on the bottom whiter than chalk
海底的沙子比白垩更白
“Sometimes more than a thousand, ” he wrote, “in anamount of material the size of a grain of sand.”
他写道，“有时一粒沙子大小的样本中就有超过一千的微生物。”
Professor Edgar Hertwich, the lead author of the report, said: "Animal products cause more damage than [producing] construction minerals such as sand or cement, plastics or metals."
埃德加·赫特维琦教授是这份报告的主要作者，他说：“生产畜产品造成的破坏远大于制造沙石、水泥、塑料或金属材料。”
The greatest wonder of all, perhaps, is that most everything here grows on nothing more substantial than sand held in place by humble fungi.
也许，这里最大的奇妙之处是几乎所有生物赖以生存的只有由卑微的真菌固定住的沙土。
When a comet gets close to the sun, melting ice releases pieces of dust, most no larger than grains of sand.
当彗星接近太阳时，它表面的冰壳开始融化分解成大大小小的碎片，大多数碎片并不会比沙粒更大。
Sand might seem more natural than pollution, but it is an indication of long-term pressure on the environment.
沙尘较之污染，也许让人觉得比较属于自然现象，但是它也反映了环境长期以来所受到的压力。
We need to draw the line of JVM-equivalence in the sand, closer to pragmatic needs than Turing-equivalence.
我们需要在地上为JVM等效画条线，一条更接近实用需求而远离图灵等效的线。
The photographs actually show sand dunes coated with a thin layer of frozen carbon dioxide, or dry ice, less than 240 miles from the planet's north pole.
这张图片实际显示的，是距离火星北极不足240英里的沙丘上覆盖的一层薄薄的冰冻二氧化碳、或干冰。
But that was not before fishermen about 70km south of the plant had caught tiny sand-eels, known as konago, with larger than normal traces of radioactive iodine and caesium.
然而，在此之前有渔民在核电站向南大约70千米的地方捕到了含放射性碘元素和铯元素超标的一种叫做玉筋鱼的沙鳗鱼。
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。
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。
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