纪录片《我们的地球》 第49期 淡水资源(06)

For the past five million years,

在过去的500万年中

Arizona's Colorado River has eaten away at the desert sandstone to create a gigantic canyon¹.

亚利桑那州的科罗拉多河冲走了大量沙石，形成一个巨大深邃的峡谷

It's over a mile deep and at its widest, it's 1 7 miles across.

它的深度超过1英里，最宽的地方达17英里

The Grand Canyon. This river has cut the world's longest canyon system,

这就是大峡谷。这条河冲蚀出了世界上最长的峡谷系

a 1 ,000 mile scar clearly visible from space.

在太空中也能清楚地看到这条长达1000英里的沟壑

As rivers leave the mountains behind, they gradually warm and begin to support more life.

河流离开山区之后，河水渐渐变暖，养育的动物也多了起来。

Indian rivers are home to the world's most social otter².

印度河里住着世界上最具社会性的水獭

Smooth-coated otters³ form family groups up to 1 7 strong.

印度水獭的一个家族可多达17名成员

Group rubbing not only refreshes their coats, but strengthens social bonds.

集体“按摩”不仅能清洁它们的皮毛，也能增强群体内部团结

When it comes to fishing, there is real strength in numbers.

当它们去捕鱼时，群体合作能保证它们屡战屡胜。

1 canyon   

n.峡谷，溪谷

参考例句：

• The Grand Canyon in the USA is 1900 metres deep.美国的大峡谷1900米深。
• The canyon is famous for producing echoes.这个峡谷以回声而闻名。

2 otter   

n.水獭

参考例句：

• The economists say the competition otter to the brink of extinction.经济学家们说，竞争把海獭推到了灭绝的边缘。
• She collared my black wool coat with otter pelts.她把我的黑呢上衣镶上了水獭领。

3 otters   

n.（水）獭( otter的名词复数 )；獭皮

参考例句：

• An attempt is being made to entice otters back to the river. 人们正试图把水獭引诱回河里去。 来自《简明英汉词典》
• Otters are believed to have been on Earth for 90 million years. 水獭被认为存活在地球上已经9千多万年。 来自互联网