This video shows the river at historically low levels from Illinois to Louisiana.

这段视频向我们展示了从伊利诺斯州到路易斯安那州河段历史最低水位。

We've got a difficult stretch of river.

我们遇到了一段难走河段。

The salmon are trapped in a section of the Fraser River in British Columbia, Canada.

这些鲑鱼被困在加拿大不列颠哥伦比亚弗雷泽河一段河段中。

The whole family regularly patrols a stretch of up to 20km.

整个家庭定期巡视长达20公里河段。

She has ruled this stretch of river for five years.

她统治这一河段已有五年之久。

The hunt takes place in an area of the river about 160 km from Lake Michigan.

狩猎活动在距离密歇根湖约160公里河段进行。

The River Derwent in the Lake District of England is now completely dry in some stretches.

英格兰湖区德文特河一些河段已经彻底干涸。

A critical fact of modern Egypt's life is that most of the Nile is actually in Sudan.

尼罗河大部分河段事实上属于苏丹，这是现代埃及需要面对一个关键问题。

In Germany, low water levels on the Rhine mean fully-loaded vessels can't sail and some sections of the river.

在德国，莱茵河水位低意味着满载船只在部分河段无法通行。

It is called the Mekong River as it flows through the other five countries before emptying into the sea.

流经其他五个国家并汇入大海河段称为湄公河。

In preparation for the fishing bonanza, some 3800 holes are drilled into an 80 acre stretch of the frozen river.

为了准备本次捕鱼盛事，人们在这条80英亩冰冻河段上钻了3800个洞。

The danger point is a footbridge on a frozen waterfall, a bottleneck where the Rideau flows into the Ottawa river.

最危险地方在于，冰冻瀑布之上还有一架人行天桥，而这瀑布正是丽都河汇入渥太华河瓶颈河段。

Authorities say they are, they those who are not accounted for could be living alone in the upper reaches of canyons.

有关部门表示，那些没有被统计人可能是独自生活在峡谷上游河段人。

We're riding one farther upstream for a look at the most scenic stretch of the Nile.

我们正骑着一辆更远上游去看看尼罗河最美丽河段。

In some of the reaches, where there is a free margin, we may walk through them.

在某些河段， 有空余地方， 我们可以步行穿过。

The landslide blocked off the section of the river, which meant the salmon could not swim upstream to spawn (lay their eggs).

滑坡堵塞了河段，这意味着鲑鱼无法游到上游产卵。

The closure forced thousands of cars and trucks to detour today and also shut down shipping on that part of the river.

今天，桥梁封锁迫使数千辆汽车和卡车绕道而行，同时关闭了该河段航运。

The heat from below, raises the temperature allowing the river water to stay above freezing point.

人们推测岩浆带来地热和水下保温岩使得这一河段可以保持零度以上水温。

These screeching calls are territorial — warning other animals that this group owns this stretch of river, and all of the fish in it.

这些刺耳叫是在宣告领地——警告其他动物，这群家伙拥有这一河段以及这里所有鱼。

We were soon under way and going at a fair pace through the beautiful reaches of the river, between Bensington and Dorchester.

我们很快就开始了，并以相当快速度穿过本辛顿和多尔切斯特之间美丽河段。