在市场确定奥巴马对股市是好是坏以及好坏程度以前，股市反复波动将趋向于成为常态。

Until the market decides if Obama is good or bad for stocks, and to what degree, volatility is apt to be the norm.

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更令人忧虑的是反复无常的股市。

A further worry is the volatility of the stock market.

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投资者对此很感兴趣，因为现在的债券收益率低得可怜，股市又是如此地反复无常。

Investors turned off by paltry bond yields and the mercurial stock market are intrigued.

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For example, the stock market crash of 1929 is repeatedly re-expected even though it only happened once; it's just prominent in our thinking.

929年股市崩盘,就被反复提及,尽管这只发生过一次,但是人们对它影响深刻

耶鲁公开课 - 金融市场课程节选