河流湖泊的水都很冷。
而且，许多河流湖泊被工厂排放的污水所污染，鱼不能生存。
What's more, a lot of rivers and lakes are beginning polluted by the waste watcr from factories. Fish can't live in them any longer.
为了保持河流湖泊清洁，防止水污染，我们必须采取措施，阻止各种污染。
In order to make rivers and lakes clean and prevent water from being polluted, we must do something to stop all sorts of pollution.
海洋正因温室气体的累积而趋向酸化，而河流湖泊的变暖正影响淡水鱼等生物的生存。
The oceans have become more acidic as a result of the buildup of greenhouse gases, and the warming of rivers and lakes is affecting freshwater fish and other species.
哥伦比亚和菲律宾最近通过对污染企业实行收费制，在清理河流湖泊方面取得了良好进展。
Colombia and Philippines have recently achieved success in cleaning up their rivers and lakes by imposing charges on factories that pollute.
生物学家已经发现，夏末时节，北美及欧洲河流湖泊里的淡水鳗鱼会远迁到大西洋中部聚集。
Biologists have discovered freshwater eels from North American and European rivers and lakes gathering as far as the middle of the Atlantic ocean during late summer.
她告诉自己，水面总是能找到的。但即使她在地图上查找河流湖泊时，她也明白自己是在拖延时间。
She would always be able to find a patch of water, she told herself, but even when she was studying the rivers and lakes in the road atlas she knew she was procrastinating.
她的四周是起伏的绿色原野，往西是奥林匹克山，东面则是卡斯克特山脉的火山和冰川，整个城市被美国西北部富有生机的河流湖泊所环绕。
It is surrounded by rugged green wilderness; to the west the Olympic Mountains, to the east the volcanoes and glaciers of the Cascade Range, and all around the brisk waters of the Northwest.
现在，所有的河流和湖泊不是干涸就是被污染了。
甚至农民使用的化学物质也流入河流和湖泊。
Even chemicals that farmers use are running into rivers and lakes.
必须阻止工厂把被污染的水倒入河流和湖泊。
Factories must be prevented from pouring polluted water into rivers and lakes.
去年，中国的环境面临着严峻的形势，几处主要的河流和湖泊被工业废料堵塞。
Last year, China's environment was facing a grave situation, with several major rivers and lakes clogged by industrial waste.
尽管发达国家的人口、工业产出和经济生产率还在飙升，但人们从含水层、河流和湖泊取水的速度已经放缓。
Although population, industrial output and economic productivity have continued to soar in developed nations, the rate at which people withdraw water from aquifers, rivers and lakes has slowed.
这些水来自河流、湖泊或大海。
虽然地球的75%被水覆盖，但只有大约2%是来自河流、湖泊、冰雪的淡水。
While 75% of our planet is covered with water, only about 2% is fresh water that comes from rivers, lakes, ice and snow.
一些科学家推测，火星在早期很长时间里可能都有以河流、湖泊，甚至海洋装点着它的表面。
Some scientists speculate that Mars may have enjoyed an extended early period during which rivers, lakes, and perhaps even oceans adorned its surface.
在某些情况下，地下水位到达地球表面，在那里以河流、湖泊和沼泽的形式表现出来。
In some cases, the water table reaches Earth's surface, where it is expressed as rivers, lakes and marshes.
任何人都不允许弄脏我们的河流或湖泊。
你会看到许多不同类型的湖泊和河流。
与湖泊、河流等地表储存的地下水相比，沙漠中含有大量的地下水。
Deserts contain large amounts of groundwater when compared to the amounts they hold in surface stores such as lakes and rivers.
在越野旅程中，动物们必须穿越许多面积较小的水域，比如河流和小湖泊。
In their cross-country journey, the animals must traverse many smaller bodies of water, such as rivers and small lakes.
鲸鱼起源于大约六千万年前亚洲的淡水湖泊和河流。
Whales originated in the freshwater lakes and rivers of ancient Asia about sixty million years ago.
欣赏它的最佳方式是泛舟穿过宁静的河流和被森林覆盖的湖泊。
The best way to appreciate it is to canoe through its quiet rivers and forested lakes.
溪流在汇入湖泊或河流之前通常流经一片湿地。
Streams, normally flow through wetlands before they reach a lake or a river.
虽然大多数化石是在海洋沉积岩中发现的，但它们也存在于河流和湖泊所留下的陆地沉积物中。
Although most fossils are found in marine sedimentary rocks, they also are found in terrestrial deposits left by streams and lakes.
他喜欢航海，并在湖泊、池塘、河流里学习航行。
He's interested in sailing and learns about sailing on lakes, ponds, and rivers.
无意或有意地，它们中的许多被排放到河流和湖泊中。
Accidentally or on purpose, many of them are discharged into streams and lakes.
人类和工厂正在污染空气、河流、湖泊和海洋。
People and factories are polluting the air, rivers, lakes and seas.
所有这些都与蓝天相映衬，倒映在清澈的河流、湖泊和池塘中，环抱于墨绿色的群山之中。
All of them are outlined against the blue sky and reflected into the clear rivers, lakes and ponds, surrounded by dark green mountains.
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.
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