Piranha are native to South American freshwater rivers.

食人鱼是一种原产于美国南部的淡鱼。

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

此外，还有取之不尽的淡。

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

世界上20%的地表淡来自哪里?

It has a lower freezing temperature than freshwater.

它的冰点温度比淡。

Glaciers provide freshwater for about two billion people.

冰川为大约20亿人提供淡。

It doesn't use freshwater or fertilizer to grow.

它不靠淡或肥料生长。

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

这里的文章说“很多河流以及淡湖”。

They are permanent floating sheets of frozen freshwater.

它们是永久的淡浮冰。

It lives in our oceans and in freshwater ponds.

生长在海洋和淡的池塘里。

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

世界上最大的淡湖是什么？

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，淡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、鱼或淡贻贝，对吧？

Freshwater fishes live in water with very low salt concentrations.

淡鱼生活在含盐量很的中。

A big conservation game for freshwater ecosystems in South Africa.

这是南非淡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 巨大淡地下蓄层支撑。

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

它们喜欢淡湖泊和沼泽，几乎不会去海洋中冒险。

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

它通常生长在非常淡的溪流的两侧。

One of the things I love to study are freshwater fishes.

有一样东西是我喜欢研究的——淡鱼。