This week on our program, we tell you about three people who are working to make a difference in the world.

VOA: special.2010.05.03

but once I could see that ethics and political philosophy really could make a difference to the way we live our lives.

但是当我看到，伦理学和政治哲学,的确可以改变我们的生活方式时。

普林斯顿公开课 - 人性课程节选

And when we're looking at the probability density graphs, it doesn't make a difference, it's okay, It has no meaning for our actual plot there, because we're squaring it, so it doesn't matter whether it's negative or positive, all that matters is the magnitude.

它的概率密度图的时候,两者没什么区别，这是可以的，它对我们画这个图，没有什么意义,因为我们是取平方，所以它的正负，无所谓，只和幅值有关，但当我们说到。

麻省理工公开课 - 化学原理课程节选

But this year, young voters made up their minds early on, and the astronomical levels of support for Obama made a big difference in the primaries and make a big difference in the general election.

NPR: As Election Day Nears, Poll Data Questioned

In fact, to every young person listening tonight who's contemplating their career choice, if you want to make a difference in the life of our nation, if you want to make a difference in the life of a child, become a teacher.

CNN: Transcript: Obama's State of the Union speech

Organize your community to make a sustained difference in the life of a veteran because that veteran can make an incredible difference in the life of your community.

WHITEHOUSE: Remarks by the President on Veterans Day