Using his understanding of complex geometric forms, Lang has played an important role in origami's evolution.

VOA: standard.2010.03.17

So essentially it's something that has to come from within the community, with the support, but it really is an evolution.

所以，从本质上来说，人权观念的改变,必须是在帮助下的群体自发觉悟，而且是一种发展。

普林斯顿公开课 - 人性课程节选

And so it really, not the course but the idea for the course, was an evolution three years four years ago, really, when I was involved in something called the Civic Values Task Force, which was started by Princeton Project 55.

所以说，不是这个课程,而是这个课程的设想，是在三四年前形成的，当时我参加了,公民价值专责小组，由普林斯顿大学55工程发起。

普林斯顿公开课 - 人性课程节选

In 1981 Ayala joined a legal battle as an expert witness in the challenge against an Arkansas law mandating that the biblical story of creation be taught in schools, alongside Darwin's theory of evolution.

VOA: standard.2010.04.05

we're seeing an evolution of risk management.

我们见证着风险管理的演进。

耶鲁公开课 - 金融市场课程节选

(OMITTED) It's still low prevalence, but you know we've just put out the synthesis report, which was an epidemiological study of HIV and its evolution in the region, and the report says that probably, at least for the near future, we'll never have an epidemic of HIV in the region.

VOA: standard.2010.07.07