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1·Salt water is more buoyant than fresh water.

盐水比淡水浮力大。《牛津词典》

2·There is a shortage of fresh water on the island.

岛上缺少淡水。《牛津词典》

3·Salt water is much more conductive than fresh water is.

盐水比淡水更具有传导性。《柯林斯英汉双解大词典》

4·In some towns, there is no fresh water.

有些城镇里没有淡水。

5·They learn how to find fresh water for drinking.

他们学习如何寻找饮用淡水。

6·People there have to use trucks to carry fresh water.

那里的人们必须使用卡车来运淡水。

7·One fifth of the world's fresh water is also found in the Amazon Rainforest.

世界上五分之一的淡水也存在于亚马逊雨林中。

8·Do you know that we are using up the Earth's fresh water faster than we can replace it?

你知道我们消耗地球上淡水的速度比我们能补充它的速度还快吗？

9·Fog catchers are a great way for people in small and lonely towns to have their own fresh water.

对于生活在荒凉小城镇的人们来说，雾收集器是他们获取属于自己的淡水的极好方式。

10·Of course, fresh water, he replied.

“当然，新鲜的水。”他回答。

(1)freshwater ecology淡水生态学