Over the past century, human use of fresh water has increased at more than double the rate of population growth.

在过去的一个世纪里，人类对淡水的使用以超过人口增长率两倍的速度增长。

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The rate of population increase began to slow.

人口增长率开始减速。

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The rate of population increase has been ratcheting downward.

人口增长率一直在步步下降。

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If the rate of population growth of the United States between 1820 and 1850 had sustained over time, we'd have today approximately one and a half billion people in the United States.

如果在1820至1850年间,美国人口增长率保持下去的话,今天我们的美国,就会拥有近十五亿人口

耶鲁公开课 - 美国内战与重建课程节选

If the rate of growth had sustained, that's what the population would've been.

假如高增长率持续的话,我们现在得有多少人口啊

耶鲁公开课 - 美国内战与重建课程节选

This makes sense; the rate at which the cell population is growing, the derivative dX/dt, is proportional to the number of cells I have.

这个说的通,细胞数目的增长速度,就是导数dX/dt,和细胞数目呈比例关系

耶鲁公开课 - 生物医学工程探索课程节选

It logged the f ifth-highest rate of population growth last year, according to the Census Bureau.

FORBES: America's Fastest Growing Cities

Because so many people emigrated the rate of population growth has been the lowest for three years.

BBC: Record trends in UK migration

Demand for seafood continues to grow at double the rate of population growth.

FORBES: Magazine Article