Jennifer Bemisderfer says this involves thinking about a product's whole lifetime: "When those products are at the end of their useful life, how are they going to be broken down?

VOA: special.2010.01.26

I think a lot of us, we do what we can in this lifetime, hoping that we're are part of a long trajectory of a moral arch toward justice What would like to see in America in 20 years?

我认为我们之中很多人在一生中会竭力奋斗，希望我们能够沿着道德，正义的,的轨迹发展,您如何构想美国20年后的情景呢？

普林斯顿公开课 - 人性课程节选

And i think this is the goal of my lifetime to at some point be able to reach the bottom.

可以说，找到这其中的根本原因,是我一生的所求。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

He says that even during Chopin's lifetime, he was the best ambassador of Polish culture, and remains so to this day.

VOA: standard.2010.03.04

Over your lifetime, there are going to be a lot more inventions like this.

在你们的一生中，会有许多这样的发明创造。

耶鲁公开课 - 金融市场课程节选

"This is big.This is personal. This is one of the most important debates of our lifetime,".

VOA: standard.2009.09.04

So we may live, in your lifetime, to a time when this burden of Southern history may get all but lifted altogether from Southerners, unless we don't forget the Civil War.

也许我们,在有生之年,不会看到这段历史给南方造成的阴影,完全消散,除非我们将内战遗忘

耶鲁公开课 - 美国内战与重建课程节选

"Indescribable,unbelievable, everyone should experience this feeling once in a lifetime,".

VOA: standard.2009.08.05

There are cells within your body that are always in the process of division and forming new cells, and sometimes this is for a tissue where cells only have a finite lifetime.

你体内的一些细胞,始终在不断分裂,并生成新的细胞,很多时候,是在一些细胞寿命有限的组织中

耶鲁公开课 - 生物医学工程探索课程节选

But all of this is overthrown, "changed utterly," by the radical politics that altered Ireland during Yeats's lifetime, that announced the coming of modernity and that these two women themselves participated in centrally.

但这一切被推翻了，完全改变“,被叶芝时期的爱尔兰,的那场激进政治革命改变了，他宣告了现代的到来,这两个女人亲身参与其中。

耶鲁公开课 - 现代诗歌课程节选

Every major African-American writer of the twentieth century, at least until your lifetime, when black writers in this country are now born and raised in cities, in California or Minneapolis or New York or and in modern Atlanta and they come from all the same places other Americas do.

二十世纪的每一个主流的非裔美籍作家,至少到你们这一辈子所能接触到的,这个国家的黑人作家,现在,都生于城市长于城市,在加州,明尼阿波利斯市或者纽约市,或者现代亚特兰大,他们从和其他美国人来自同一个地方

耶鲁公开课 - 美国内战与重建课程节选