Most migraines react at least partly to existing medicine.

VOA: special.2010.03.30

But at last, I saw that as far as all states now existing are concerned, they are all badly governed.

但最后,我看到的是所有邦国，现存的所有邦国的统治都很糟糕。

耶鲁公开课 - 政治哲学导论课程节选

is actually looking at how to regulate greenhouse gases under existing environmental laws,

其职务是研究在现行的环境法下如何管理温室气体的排放，

全球变暖与国力 - SpeakingMax英语口语达人

Other companies such as Suzuki,Nissan, Toyota,and Honda have already announced plans to spend about $5 billion to make small cars in India or increase production at their existing plants over the next three years.

VOA: standard.2009.09.25

This is somebody being tortured at the stake for merely existing, for having not confessed to being a Protestant or a Catholic or whatever.

那个人被毫无缘由地处决,或者由于新教徒或天主教徒的身份,或者其他什么原因而受罚

耶鲁公开课 - 欧洲文明课程节选

By the way, this isn't at all a question of the author not existing.

并且，这绝对不是有关作者不存在的问题。

耶鲁公开课 - 文学理论导论课程节选

You could imagine a protein that's existing inside a cell at some level of abundance.

想像一下,在细胞中有一种大量存在的蛋白

耶鲁公开课 - 生物医学工程探索课程节选

It's another thing to ask, when you look at the picture, are you existing?

另一个要问的事情是，当你看着这个画面时，你是否存在？

耶鲁公开课 - 死亡课程节选