On the the 40th anniversary of Earth Day, this warming planet we live on is posing serious new challenges to human civilization: increasingly severe droughts, floods,and storms across the globe, and slowly rising ocean levels.

VOA: standard.2010.04.21

Nevertheless, our knowledge of the earliest stages of human civilization was quite limited for many centuries.

然而，几个世纪以来,我们对人类最早时期文明,的认知是很有限的。

耶鲁公开课 - 旧约导论课程节选

You don't need me to tell you that human civilization is very, very old.

人类的文明是非常非常古老的,这不用我来告诉大家了吧。

耶鲁公开课 - 旧约导论课程节选