第五集——克洛·维斯石矛头克洛·维斯石矛头，距今约于一万三千年前以上，出土于美国亚利桑利州。

Clovis point (made over 13, 000 years ago). Stone spearhead found in Arizona.

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访问可能要等到新的大使任命，这是被费利德·扎卡利亚称作美国驻外事务处中“最艰难也是最重要的任命”。

A visit might have to wait until a new ambassador is appointed to fill what Fareed Zakaria calls the "toughest and most crucial assignment" in the American foreign service.

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本月17日，伊利诺斯州债券的违约担保成本创下历史新高，超过了美国最大的债务州- - -加利福利亚。

On June 17th the cost of insuring Illinois' bonds against default hit a record high, rising above that of California, America's largest municipal borrower.

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In Alexis de Tocqueville's great Democracy in America, which he published in 1831,or published in 1837, after his famous nine-month tour of the United States the most famous book, travel book, ever written about America, by a foreigner.

亚利西斯·德·托克维尔的著作《美国民主》,在1831年,或者1837年出版,这是本他在美国周游了九个月之后,写成的游记,在所有由外国作家执笔,所著的关于美国的书中享有盛誉

耶鲁公开课 - 美国内战与重建课程节选