每次我们洗牛仔裤的时候，小块的牛仔布就会从洗衣机里流出来，流入世界上的河流、湖泊和海洋。
Every time we wash our jeans, tiny bits of denim will flow out of our washing machines, down into the world's rivers, lakes and oceans.
世界上的河流中只有亚马逊河鱼的种类比湄公河多。
Of the world's rivers, only the Amazon has more species of fish than the Mekong.
世界上的河流被人类活动严重影响。接近50亿人口的饮水安全，还有成千上万的水生物种的生存都受到威胁。
The world's rivers are so badly affected by human activity that the water security of almost 5 billion people, and the survival of thousands of aquatic species, are threatened, scientists warned .
与世界上最长的两条河流——尼罗河和亚马逊河相比，这些水道显得黯然失色。
These waterways seem mute in comparison to the world's two longest rivers—the Nile and the Amazon.
这些水坝阻断了6种鲑鱼的上游产卵地，而这条河曾是世界上鲑鱼产量最高的河流之一。
These dams blocked access to upstream spawning beds for six species of salmon on what once was one of the most productive salmon rivers in the world.
令人惊讶的是，干旱地区拥有着世界上最大的一些河流系统，如澳大利亚的墨累-达令河、北美的里奥格兰德河、亚洲的印度河和非洲的尼罗河。
Arid lands, surprisingly, contain some of the world's largest river systems, such as the Murray-Darling in Australia, the Rio Grande in North America, the Indus in Asia, and the Nile in Africa.
这是世界上最大的河流。
长江是中国最长的河流，但它比世界上最长的河流尼罗河短。
Although the Yangtze is the longest river in China, it is shorter than the Nile, the longest river in the world.
这些是世界上最长的五条河流。
中国是世界上河流最多的国家之一。
China is one of the countries which have the largest number of rivers.
很多人认为河流总是往南流，但世界上10条最长的河流中有4条就是往北流的。
A lot of people think that rivers always flow south, but 4 of the 10 longest rivers in the world flow north.
亚马逊河被称为世界上最大和最危险的河流。
The Amazon is known as the largest and most dangerous river in the world.
非洲被标注着拥有世界上最高的山峰和最长的河流。
Africa was noted to have the world's highest mountain and longest river.
一些世界上伟大的河流已经不能流向大海，因此在很多城市已经采取定量用水的措施。
Some of the world’s great rivers no longer reach the sea. In many cities water is rationed.
煤燃料中的汞、砷以及其他危险的化学物质都对世界上的海洋和河流造成了污染。
Coal is polluting the world's oceans and streams with mercury, arsenic and other dangerous chemicals.
世界上那些流经粮食生产区的河流很少有终年奔流到海的，即使有，也是涓涓细流。
Few of the world's great rivers that run through grain-growing areas now reach the sea all the year round or, if they do, they do so as a trickle.
亚马逊河蜿蜒纵横，作为世界上流量最大的河流，造就了地球上最大的流域。
The forest is fed by the Amazon river, the largest river in the world by volume, which also has the biggest drainage basin on the planet.
世界上危险最小的河流是那些流域人口最少的河流。在北极地区和相对人迹罕至的热带地区，河流看来是最健康的。
Rivers in arctic regions and relatively inaccessible areas of the tropics appear to be in the best health.
印尼200英里长的芝塔龙(Citarum)河沿岸分布着500多家工厂，这条河很可能是世界上污染最严重的河流。
The 200-mile long Citarum river in Indonesia hosts more than 500 factories along its Banks and is quite possibly the most polluted river in the world.
注释显示非洲有世界上最高的山峰和最长的河流，而对北美洲的简短描述中提到了“驼背的牛”、野马以及一个被命名为Ka - na - ta(音)的地区。
Africa was noted to have the world's highest mountain and longest river, while a brief description of North America describes' humped oxen ', wild horses and a region named 'Ka-na-ta'.
尼罗河是世界上最长的河流之一。
世界上的四大发明均起源于河流，尼罗河、幼发拉底河和恒河，当然还有黄河。
All four of the great old world civilizations began on rivers-the Nile, the Euphrates, the Indus and the Yellow river.
两河流域即使不是第一也是世界上最早发明书写的文明之一。
Mesopotamia was one of the first, if not the first, place in the world where writing developed.
研究已经表明，尽管让云团变白可以降低气温，但它也可能会导致世界上一些脆弱地区的降雨量发生改变，比如亚马逊河流域。
Studies have shown that, while cloud whitening could lower temperatures, it might also lead to changes in rainfall in vulnerable parts of the world such as Amazon.
如此的侵蚀可能磨损出峡，或峡谷。科罗拉多河大峡谷是世界上最大的河流峡谷。
Such erosion may cut a gorge or canyon. The Grand canyon of the Colorado river is the largest river canyon in the world.
它说，世界上的海洋、湖泊和河流已经捕捞到极限。它还表示，更多鱼必须在水产养殖项目或渔场内生产。
It says the world's oceans, lakes and rivers are fished to their limit, and it says more fish must be produced in aquaculture projects or fish farms.
因为你喜欢野外活动，也许你能找到办法解决土壤侵蚀问题，那样就可以防止世界上主要河流侵蚀其河岸的问题了。
Since you like the outdoors, maybe you'll find a solution for soil erosion that will prevent the great rivers of the world from eroding their Banks.
因为你喜欢野外活动，也许你能找到办法解决土壤侵蚀问题，那样就可以防止世界上主要河流侵蚀其河岸的问题了。
Since you like the outdoors, maybe you'll find a solution for soil erosion that will prevent the great rivers of the world from eroding their Banks.
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