在十九世纪六七十年代，芝加哥标榜其凉风习习，是夏日避暑的理想场所。

In the eighteen sixties and seventies, Chicago was advertised as an ideal place to visit in the summer because of this cool wind.

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然而，史密瑟斯的主张给投资者带来两个明显的问题：第一、按其测算，股票估值自十九世纪中期一直过高。

However, the Smithers thesis presents investors with two obvious problems. The first is that shares have looked overvalued, on his measure, since the mid-1990s.

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该委员会与700多名证人进行了长达十九天的听证和采访，并保证在网上发布其收藏的有价值记录及其他的原始文件。

The commission held 19 days of hearings and interviews with more than 700 witnesses; it has pledged to release a trove of transcripts and other raw material online.

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