Piranha are native to South American freshwater rivers.

食鱼是一种原产于美国南部淡水鱼。

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

此外，还有取之不尽淡水。

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

世界上20%地表淡水来自哪里?

It has a lower freezing temperature than freshwater.

冰点温度比淡水低。

The researchers only considered land and freshwater areas.

研究考虑了陆地和淡水地区。

It doesn't use freshwater or fertilizer to grow.

不靠淡水或肥料生长。

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

这里说“很多河流以及淡水湖”。

They are permanent floating sheets of frozen freshwater.

们是永久淡水浮冰。

It lives in our oceans and in freshwater ponds.

生长在海洋和淡水池塘里。

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

世界上最大淡水湖是什么？

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

随着一场新关于乘数争论升温，淡水派坚守了们阵地。

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

地球上最大鱼类之一是巨大淡水黄貂鱼。

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、鱼或淡水贻贝，对吧？

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

地球淡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.

淡水鱼生活在含盐量很低水中。

A big conservation game for freshwater ecosystems in South Africa.

这是南非淡水生态系统一场庞大保护游戏。

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

撒哈拉绝大部分区域是由底下 巨大淡水地下蓄水层支撑。

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

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.

通常生长在非常淡水溪流两侧。