But he has new respect for the singer as news is coming out of Jackson's many charitable contributions, usually made without fanfare.

VOA: standard.2009.06.28

That's another example of an area where biomedical engineers have made tremendous contributions.

这是生物医学工程师,做出重大贡献的另一个领域

耶鲁公开课 - 生物医学工程探索课程节选

And, as you know, Einstein made many, many, many very important contributions to science and relativity, but he called this his one single most important contribution to science the relationship between energy and frequency and the idea of photons.

于这些波包里，你们也知道，爱因斯坦在科学和相对论上,做出了非常非常非常多的贡献,但它把这个叫做他对科学,最重要的贡献，就是能量和,频率之间的关系以及光子的概念。

麻省理工公开课 - 化学原理课程节选

But he defended the contributions already made in the eight-year campaign.

VOA: standard.2009.09.29