A tornado warning means that a tornado has been seen.

VOA: special.2010.05.11

Yeats's career is maybe the most famous one in modern poetry that is, a career that has been seen as a kind of representative story about modern poetry as a whole. What's that story?

叶芝的事业在现代诗歌史上,也许是最著名的,他的事业被认为是,代表了现代诗歌整个历程,那这个历程是什么呢？

耶鲁公开课 - 现代诗歌课程节选

And we don't have all the answers to these questions but what we've found so far by studying the cerebellum parallels in many ways what has been seen at the whole brain level. We know that there are distinct kinds of learning and memory that depend on distinct brain regions.

对这些问题，我们还不能一一给出答案,不过，迄今为止，通过对小脑的研究，权衡对大脑已知的了解,我们发现，不同的脑区有着各自的学习记忆能力。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

"Jogja actually has been seen as a successful model for a reconstruction program because the government is very open, the government is very assertive and they are very easily approachable to work with."

VOA: standard.2010.04.14

And he took leave of him there. So Jacob named the place Peniel, meaning, "I have seen a divine being face to face, yet my life has been preserved."

便在那里跟雅各告别，雅各便给那地方起名叫毗努伊勒，意思说，“我面对面见了神，我的性命仍得保全，“

耶鲁公开课 - 旧约导论课程节选

He has already been seen shooting hoops on the basketball court outside.

VOA: special.2009.05.08

The SEC was very controversial at first because it was seen as interfering with business and the U.S. Has been built on principles of individual freedom; this seemed like unnecessary government intrusion.

起初,证券交易委员会引起了许多争议,因为人们认为它会干扰商业运作,个人自由是美国的立国之本,政府的干预似乎并非必要

耶鲁公开课 - 金融市场课程节选

"I think most of the violence that we have seen from extreme right-wing groups has been of a more, if you will,casual,street variety targeted against demonstrations by immigrant groups or simple attacks on immigrants."

VOA: special.2011.07.30

His claim that the lives of his fellow citizens are not worth living and his claim that his way of life has been commanded by a god that no one else has ever heard or seen.

他主张其同胞的人生,不值得活,和自己的生活方式,是受神性的指示,这些都未曾有人听闻过。

耶鲁公开课 - 政治哲学导论课程节选

Dr. William Abraham of Ohio State University "It has been a decade since we have seen a trial this positive."

VOA: standard.2010.06.04

Has anybody been--seen this bridge?

有人见过这座桥吗？

耶鲁公开课 - 心理学导论课程节选

The soldier is being held in the Hamas-ruled Gaza Strip but has not been seen since his capture.

VOA: standard.2009.03.15

"Fiona has always been a warrior. I've always seen her as that: a warrior of love."

VOA: standard.2010.05.27

"It has been a tour where we have seen things changed,".

VOA: standard.2009.10.12

We've seen two bi-partisan commissions come out just this January saying al-Qaida has been trying to get nuclear weapons since the 1900s and they are actively continuing to do so."

VOA: standard.2010.04.06

So in addition to what each side's own intelligence services are able to pick up, the treaty provides additional information which has always been seen as being of great confidence-building value."

VOA: standard.2009.12.07