Piranha are native to South American freshwater rivers.

食人鱼是一种原产于美国南部的水鱼。

And also you can really have as much freshwater as you want.

此外，还有取之尽的水。

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

世界上20%的地表水来自哪里?

It has a lower freezing temperature than freshwater.

的冰点温度比水低。

The researchers only considered land and freshwater areas.

研究人员只考虑了陆地和水地区。

It doesn't use freshwater or fertilizer to grow.

水或肥料生长。

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

这里的文章说“很多河流以及水湖”。

They are permanent floating sheets of frozen freshwater.

们是永久的水浮冰。

It lives in our oceans and in freshwater ponds.

生长在海洋和水的池塘里。

What is the world's largest freshwater lake by volume?

世界上最大的水湖是什么？

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，水派坚守了们的阵地。

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水黄貂鱼。

Yeah, it is. It's freshwater eel.

是寿司没错，那是鳗鱼。

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

有时这些动物是海龟、鱼或水贻贝，对吧？

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

地球的水资源变得越来越污浊、越来越咸、越来越稀少。

Freshwater fishes live in water with very low salt concentrations.

水鱼生活在含盐量很低的水中。

A big conservation game for freshwater ecosystems in South Africa.

这是南非水生态系统的一场庞大的保护游戏。

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 巨大水地下蓄水层支撑。

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

们喜欢水湖泊和沼泽，几乎会去海洋中冒险。

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

通常生长在非常水的溪流的两侧。