In some cases, the water table reaches Earth's surface, where it is expressed as rivers, lakes and marshes.
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。
While 75% of our planet is covered with water, only about 2% is fresh water that comes from rivers, lakes, ice and snow.
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。
Some scientists speculate that Mars may have enjoyed an extended early period during which rivers, lakes, and perhaps even oceans adorned its surface.
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。
Last year, China's environment was facing a grave situation, with several major rivers and lakes clogged by industrial waste.
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。
The best way to appreciate it is to canoe through its quiet rivers and forested lakes.
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。
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.
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。
In their cross-country journey, the animals must traverse many smaller bodies of water, such as rivers and small lakes.
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。
Whales originated in the freshwater lakes and rivers of ancient Asia about sixty million years ago.
鲸鱼起源于大约六千万年前亚洲的淡水湖泊和河流。
Deserts contain large amounts of groundwater when compared to the amounts they hold in surface stores such as lakes and rivers.
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。
It goes some way towards explaining why books about swimming, in which people tackle icy lakes, race in rivers and overcome oceans while reflecting on their lives, have recently become so popular.
这在一定程度上解释了为什么关于游泳的书最近变得如此受欢迎，在书中，人们在反思自己生活的同时，应对结冰的湖泊，在河流中赛跑，征服海洋。
We live in lakes, rivers and seas.
我们生活在江、河、湖、海里。
There are many lakes and rivers in your country. We also have many rivers, but only a few lakes.
你们国家有许多河流和湖。我们有许多河，但是没有什么湖。
He's interested in sailing and learns about sailing on lakes, ponds, and rivers.
他喜欢航海，并在湖泊、池塘、河流里学习航行。
"My father hoped I would grow up to be a man who keeps the mountains, rivers, lakes and seas in mind," the courier said.
“我父亲希望我长大后能成为一个心中有山川湖海的人。”派送员说
The pike lives mainly in large rivers and lakes.
梭鱼主要生活在大的江河湖泊里。
People and factories are polluting the air, rivers, lakes and seas.
人类和工厂正在污染空气、河流、湖泊和海洋。
All of them are outlined against the blue sky and reflected into the clear rivers, lakes and ponds, surrounded by dark green mountains.
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。
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.
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。
Now, all the rivers and lakes are either dry or polluted.
现在，所有的河流和湖泊不是干涸就是被污染了。
Even chemicals that farmers use are running into rivers and lakes.
甚至农民使用的化学物质也流入河流和湖泊。
Factories must be prevented from pouring polluted water into rivers and lakes.
必须阻止工厂把被污染的水倒入河流和湖泊。
Wetlands—lakes, rivers, marshes and coasts, can maintain biodiversity, control floods and remove pollutants.
湖泊、河流、沼泽和海岸等湿地可以维持生物多样性、防洪以及消除污染物。
In many places, rubbish is thrown into lakes and rivers.
在许多地方，垃圾被扔进湖泊和河流。
What's more, we shouldn't put the waste into lakes or rivers.
此外，我们不应该把废物投入湖泊或河流中。
The term “rivers and lakes” in old days meant in general all corners of the country.
“江湖”过去泛指四方各地。
Rivers and lakes provide us with water transport and irrigation.
江河湖泽给我们以舟楫和灌溉之利。
Radioactivity can also be washed into rivers, lakes and the sea where fish and seafood could take up the radionuclides.
放射性也可以被冲入河流、湖泊和海洋，在这些地方鱼类和海产食品可能会吸收放射性核素。
These sources of water normally have much higher concentrations of radon than surface water from rivers, lakes and streams.
这些水源通常比河流、湖泊和小溪的地表水具有高得多的氡浓度。
Manure is also a problem, since it gives off methane and can be washed away by rain, potentially poisoning rivers, lakes or even groundwater.
家畜的粪便也是一个问题，其排泄时产生大量甲烷气体，粪便会被雨水冲走，有可能污染河流、湖泊、甚至地下水。
Many fish and sea animals live in the streams, rivers, lakes, seas and oceans on the Earth.
很多鱼类以及海洋动物生活在小溪、河流、湖泊、海洋之中。
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