But natural selection has stood the test of time as a basis for the science of biology.

VOA: special.2009.12.01

This is on the basis of the integral of the current times the time.

这是根据电流对,时间的积分。

麻省理工公开课 - 固态化学导论课程节选

By now, in our time, however, the power of religion has faded, and for many, the basis of modern political and moral order has been demolished.

但是现在,宗教的影响力慢慢减弱了,对大部分人来说,现代政治,道德准则的基础已经被毁坏了

耶鲁公开课 - 古希腊历史简介课程节选

we're going to be doing these on a regular basis." "And I'm very thankful that everybody here has taken the time to come.

VOA: standard.2010.02.09

It is also, I should say, on the basis of this letter, which is why I ask people from time to time to remove their caps in the class room, from the House of Study.

也应可以说是因为这封信，促使我总是要求,课堂上的同学摘下鸭舌帽来听课，至少在学习的殿堂里。

耶鲁公开课 - 政治哲学导论课程节选

Abbas Milani, an analyst at The Hoover Institution, "I certainly know of no time in Iranian history where the democratic discourse, and the social basis of democracy have been as strong."

VOA: standard.2010.06.11