in the right amounts

"For humanity to thrive, or even exist, we need to sprinkle that teeny bit of fresh water in the right places, at the right times and in just the right amounts, " Gallo said.

盖洛说：“对于人类的繁荣，甚至他们的存在，我们需要在正确的地方，在适当的时间，和以刚好合适的数量提供所需要的淡水。”

And in six separate papers published today in Science, researchers across a wide range of disciplines showed that it's there all right, in the form of ice - and in impressive amounts.

今天在《科学》发表的六个单独的文件，多科目的研究者们表示确实有水，以冰的形式存在——并有着令人印象深刻的数量。

you have to learn eating the right foods at the right time during the day in moderate amounts.

你必须要知道在什么时间，吃多少合适的食物。