But observers say India and China remain wary of accepting legally binding emission cuts at a time when they are making their presence felt on the global economic scene.

VOA: standard.2009.11.27

You really have, therefore, for in some way the first time in history, a dream of making all of his empire basically universal, a dream of a universal vision, for one world, under one kind of culture, one kind of language.

因此某种程度上说，这是历史上第一次出现，梦想建立统一的帝国，同一个世界的愿景，同一种文化，同一种语言。

耶鲁公开课 - 新约课程节选

We see novel things all the time and if we were not capable of learning and making guesses, educated guesses, about these novel things we would not be able to survive.

我们经常会碰到新事物,如果我们不能学习，不能猜测，不能纠正对新事物猜测,我们就无法生存。

耶鲁公开课 - 心理学导论课程节选

The important concept is that, while every cell in your body has the capability of making all the proteins that are needed throughout your body, not every cell is doing that at any given time.

这里面有一个重要的概念,就是尽管你身体里的细胞都,有能力制造出,全身上下所需的所有蛋白质,但不是所有细胞每时每刻都在这么做

耶鲁公开课 - 生物医学工程探索课程节选