"The number one foreign country is Mexico." "Approximately 20 percent of our cases involve victims from Mexico."

VOA: standard.2010.05.24

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 you have an interest rate--this is approximately equal to-- one plus the real interest rate is equal to divided by one plus the rate of inflation.

如果你知道名义利率,那实际利率约等于,这里应该是=,/

耶鲁公开课 - 金融市场课程节选

Lieutenant General Ronald Burgess response this question from Levin, "With the installed centrifuges that they have, how long would it take,approximately, to produce enough highly-enriched uranium for one nuclear weapon?"

VOA: standard.2010.04.14