It lives in our oceans and in freshwater ponds.

生长在海洋和淡水池塘里。

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

它通常生长在非常淡水溪流两侧。

There are water pipes that bring fresh water, but they leak or break a lot.

有输送淡水水管，但它们经常漏水或破裂。

This is the end of the rivers' journey.

这是淡水之旅终点。

You're aware, professor, that salt water is denser than fresh water, but this density isn't uniform.

教授，您知道海水比淡水密度大，但海水密度并是各处完全一律。

But we can see their effects on some of the largest bodies of fresh water on earth.

但我们可以看到它们对上最大淡水水体影响。

But he found that potatoes grew better than the other vegetables in the combination of sea and fresh water.

过他发现在海水和淡水混物中，土豆比其他蔬菜长得更好。

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消耗。

But ice is made of fresh water, not salty sea water.

但是冰是由淡水构成，而是咸海水。

But Natovenator was adapted to a life that involved a freshwater environment.

但非鸟兽脚类恐龙适应了淡水环境生活。

And our current rate of consumption, the global demand for fresh water doubles every 20 years.

以我们目前消耗速度，全对淡水需求每 20 翻一番。

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影响。

Freshwater bugs would experience a 38 percent increase over the same period.

淡水昆虫数量在未来30里将增加38%。

They are permanent floating sheets of frozen freshwater.

它们是永久淡水浮冰。

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

自1970以来，淡水物种数量平均减少了83%。

Piranha are native to South American freshwater rivers.

食人鱼是一种原产于美国南部淡水鱼。

At the South Pole, the continent of Antarctica, holds 70% of the world's fresh water.

在南极那儿拥有世界70%淡水。

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

世界上最大淡水湖是什么？

Together it's the Great Lakes that contain about 20 percent of the world's fresh water.

答案是五大湖。五大湖占世界上淡水量20%。

70 percent of all the world's fresh water.

全世界 70% 淡水资源。