Those that make it upstream develop into opaque elvers.

那些成功抵达上游的鱼变成了不透明的鳗鱼。

Ethiopia is working on a huge dam to contain water upstream.

埃塞俄比亚正在修建座巨型大坝，以控制上游的水。

They knew that the stream would be better to drink farther up, away from the beach.

他们知道最好喝上游的溪水，远离海滩。

They are white poplars. Though very common in Northwest China, they are no ordinary trees!

那是力争上游的种树，笔直的干，笔直的枝。

Within a basin, the water upstream may be useful for irrigation, industrial or domestic use.

在地之内，河流上游的水也许可以用于灌溉、工业以家庭活动。

One is Iranian-backed. The other theater that's opening up is the upper Tigris River Valley.

其中是伊朗支持的。是底格里斯河上游的场。

Predators like the smallmouth bass have caused problems for the upper river's environment.

像小嘴鲈鱼这样的掠食者已经给科罗拉多河上游的环境造成了问题。

Salmon and the river ecosystem have become threatened by a host of problems originating far up river.

三文鱼和河流生态系统已经受到来自河流上游的系列问题的威胁。

The reservation is also downriver from a former General Motors factory that is now a Superfund site.

更糟糕的是，保留地上游的通用汽车工厂旧址已经变成了超级基金污染场址。

Wayne Pullan is the bureau's director for the upper basin.

韦恩·普兰是该局上游地的局长。

The problems start further up the river.

问题开始于河流的上游。

But behind the scenes in an online game, this is what it looks like.

但是每网上游戏的幕后，看起来却是这样的。

Yes. And there was a big party in the street.

是的。街道上游场盛大的派对。

Now, upstream, the water is flowing pretty slowly.

在上游，河水的流速比较慢。

Agencies spend millions of dollars each year to keep invasive species under control in the upper part of the river.

各机构每年花费数百万美元来控制河流上游的入侵物种。

Climate change is partly to blame, but also dams upstream on the Mekong River that choke the flow of freshwater.

气候变化是部分原因，但湄公河上游的大坝也阻遏了淡水的流动。

Race to the Top had good goals, but poor implementation.

“力争上游”计划的目标很好，但是实施很糟。

I mean, it's the biggest deal we've seen in upstream US oil and gas in decades.

这是几十年来我们在美国油气上游看到的最大笔交易。

18. W: Do you understand why the local people are opposed to the new dam up the river?

问题18. W: 你知道为什么当地人反对在河的上游建新的大坝吗？

There is something on my line and it's big.

我的线上游东西，它很大。