So I need everybody to be clear - we will protect your identities and your security as you vigorously pursue your missions."

VOA: standard.2009.04.20

We'll think about it in section, how you don't need to vaccinate everybody, but you just need to vaccinate a critical number in order to stop the disease from progressing through a community.

我们在讨论会上讲这个,为什么不需要给每个人都接种,但你只需要让接种人数达到一个临界值,就能阻止这个疾病在社会中传播

耶鲁公开课 - 生物医学工程探索课程节选

But if we could statistically control for every other variable, all I'd need to do is measure the distance from your door to everybody else's door on campus and I could chart out who's going to fall in love with whom on the Yale campus.

如果我们能精确地控制其他可变因素，那么只需要测测距离,你宿舍门到其他宿舍门的距离,我就能够计算出,校园里谁爱上了谁。

耶鲁公开课 - 心理学导论课程节选

I need everybody's permission slips, okay? - Sammy, please collect them.- Yeah.

VOA: standard.other

These folks need to stop scaring everybody." Democrats concede the political stakes on the health-care issue are very high, both for the president and for the Democratic majorities in Congress.

VOA: standard.2009.07.31