Scientists are working to develop crop plants that can reduce the amount of water used for agriculture.

VOA: special.2009.03.23

So, for instance, if you take a glass of water and you pour it into another glass that's shallow or tall, it won't change the amount of water you have.

比如说,你有一杯水,将水倒进另一个更浅或者更深的杯子里,含水量并未发生任何改变

耶鲁公开课 - 心理学导论课程节选

The amount of water that you need to have the optimal sort of concentrations of things is determined by how much urine your kidneys produce and how much they excrete each day.

为了保持体内物质的理想浓度,所需的水量,取决于肾脏每天产生,以及排出体外的尿量

耶鲁公开课 - 生物医学工程探索课程节选

Scientists are working to develop crops that can reduce the amount of water used for agriculture.

VOA: special.2009.01.20

The result is that the amount of water in the body increases.

VOA: special.2010.07.27

And the amount of water found in that layer was very small.

VOA: special.2009.12.30

And the amount of water present in that layer is very small.

VOA: special.2009.09.30

The earthquake displaces a large amount of water in the ocean.

VOA: special.2011.06.07

They require an exact amount of water,warmth,soil and protection.

VOA: special.2010.02.17

Humidity is the amount of water in the air.

VOA: special.2010.07.27

"Kids really get engaged in science in the garden where it's a kind of fun activity where they're collecting data and seeing how different temperatures will change the amount of water that's needed by a crop, so the science concepts come easily."

VOA: special.2011.06.14

Mix eight grams of alum with seven grams of cream of tartar in a small amount of hot water.

VOA: special.2010.08.02

Cabbage leaves can be steamed or cooked in a small amount of boiling water until they soften.

VOA: special.2009.03.03

"It's so simple. With a two-liter bottle you add sugar, you add extract, you add a small amount of yeast and water, cap it up and in two days they've got root beer.

VOA: special.2011.08.01

BP Vice President Kent Wells says the method will reduce the amount of oil spewing into the water.

VOA: standard.2010.05.17