This is since 1802-- now how many countries do you think have uninterrupted stock market data since 1802?

西格尔使用的数据始于1802年...,你们想想现在有多少的国家,存有从1802年以来,股票市场的完整数据呢

耶鲁公开课 - 金融市场课程节选

By your estimation, how many more years before we will see Afghan National Army and the police force in enough numbers to stablize the country?

根据您的估计，还要多少年,才能有足够的阿富汗国民士兵和警察,来维持这个国家的安定？

普林斯顿公开课 - 国际座谈会课程节选

There have been some interesting surveys about people's relationship with food and the Pugh Foundation did a survey that was published in April of 2006 that asked people how much found out what percentage of people really enjoy eating.

有很多有意思的调查研究,关于食品,和人际关系的联系,其中皮尤基金会,2006年4月发布的一项调查试图解析,究竟有多少人能真正从饮食中获得享受

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选