Thanks to natural selection, most species that have ever lived has already gone extinct, so this is not a new phenomenon.

由于自然选择，大多数曾经存在过的物种已经灭绝，所以这不是一个新现象。

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A common theory for this unusual phenomenon is that the lemmings do not realize that the ocean is such a huge body of water.

对于这种不寻常的现象，一个普遍的理论是，旅鼠没有意识到海洋是如此巨大的一片水域。

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Most people are not able to recount memories for experiences prior to the age of three years, a phenomenon called infantile amnesia.

大多数人都不能回忆起三岁之前的经历，这种现象被称为婴儿失忆症。

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Students have a lot of trouble with the concepts because there is not much intuition about electromagnetic phenomenon.

学生们对于理解概念,觉得很困难,因为对于电磁学现象,只有很少能凭直觉理解的。

麻省理工公开课 - 媒体、教育、市场课程节选

This is not just a U.S. Phenomenon; many countries around the world are experiencing home price booms and the beginnings of what might be a home price bust.

这个现象并非美国独有,世界上其他国家,也正经历房价暴涨,甚至是崩溃

耶鲁公开课 - 金融市场课程节选

Why the interest rate clears-- it's a mysterious phenomenon, because it's a market phenomenon and each person only sees his or her own contribution to the market and not the whole market.

为什么这个利率能让市场出清...,这是个不可思议的市场现象,每个人只能看到自己在市场中的行为,而不了解整体市场情况

耶鲁公开课 - 金融市场课程节选

That clustering is not a phenomenon whose time has passed is demonstrated by California's Silicon Valley.

ECONOMIST: Idea: Clustering | The

Rising single parenthood is not a phenomenon unique to this country, however, although we have the highest rate of all the countries Legal Momentum examined.

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It is not a phenomenon: it is an everyday matter.

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