Piranha are native to South American freshwater rivers.

食人鱼是一种原产于美国南部的淡水鱼。

As a new debate over multipliers flared, freshwater types stood their ground.

随着一场新的关于乘数争论的升温，淡水派坚守了它们的阵地。

One of the largest fish on Earth is the giant freshwater stingray.

地球上最大的鱼类之一是巨大的淡水黄貂鱼。

Where would you find about 20 percent of the world's surface freshwater?

世界上20%的地表淡水来自哪里?

It doesn't use freshwater or fertilizer to grow.

它不靠淡水或肥。

It has a lower freezing temperature than freshwater.

它的冰点温度比淡水低。

Much of the Sahara is underlain by an enormous freshwater aquifer.

撒哈拉绝大部分区域是由底下的 巨大淡水地下蓄水层支撑。

They live everywhere on earth—saltwater, freshwater, everywhere—and this one is out looking for food.

它们在地球上无处不在——海水、淡水，到处都是——而这一只正要出来觅食。

Here, the text says 'many rivers and freshwater lakes'.

这里的文章说“很多河流以及淡水湖”。

You might be more likely to see this at a lake, a freshwater lake.

你更有可能在湖中，淡水湖中看到它。

Sometimes these are turtles or fish or freshwater mussels, right?

有时这些动物是海龟、鱼或淡水贻贝，对吧？

The forest provides lumber, habitat and freshwater and it sequesters vast amounts of carbon.

森林可以提供木材、动物栖息地和淡水，还能储备大量的碳。

They favor freshwater lakes and swamps, rarely venturing into the ocean.

它们喜欢淡水湖泊和沼泽，几乎不会去海洋中冒险。

It is often growing on the sides of very freshwater streams.

它通常在非常淡水的溪流的两侧。

Earth's freshwater supply is getting dirtier, saltier, and scarcer.

地球的淡水资源变得越来越污浊、越来越咸、越来越稀少。

And reduce the human consumption of freshwater resources from lakes and rivers.

并减少人类对湖泊和河流淡水资源的消耗。

Freshwater populations have decreased by an average of 83 percent since 1970.

自1970年以来，淡水物种的数量平均减少了83%。

The effects of climate change on freshwater environments have also been studied.

专家还研究了气候变化对淡水环境的影响。

The researchers also studied insects that spend at least part of their lives in freshwater.

研究人员还研究了至少在淡水中活一段时间的昆虫。

What is really unique about this is it is a freshwater wetland which is unusual.

真正的独特之处在于，这里是一个不寻常的淡水湿地。