"More alarmingly,WHO estimates if the combined effect of decreased financial and political commitment were to be sustained or continued, this could result to a return of a half a million measles deaths each year by 2012, wiping out the gains made over the past 18 years."

VOA: standard.2010.05.21

If the answer turns out to be no, it's going to take some sustained argument to settle it one way or the other.

如果答案是否定的,它将需要更有力的论据,去证明出个所以然

耶鲁公开课 - 死亡课程节选

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

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