美国的国家象征秃头鹰在20年前几乎都灭绝了，但它的数量最终有所恢复。

America's national symbol, the bald eagle, almost went extinct twenty years ago, but it has made a comeback.

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她写道，与大多数在国际评估中超过美国的国家不同，美国学校过于强调体育运动。

She writes that, unlike most countries that outperform the United States on international assessments, American schools put too much of an emphasis on athletics.

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艾森豪威尔行政办公大楼（EEOB）在美国的国家历史和建筑遗产中都占有独特的地位。

The Eisenhower Executive Office Building (EEOB) commands a unique position in both the national history and the architectural heritage of the United States.

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There are not many countries in which, for instance, ; that sort of religious challenge, say, to science; it happens more frequently in this country.

比如说，很少由国家，那里宗教对科学造成的威胁;,比美国还要频繁。

普林斯顿公开课 - 人性课程节选

Because the U.S. is an arguably very successful country, so we have, potentially, a bias in--it's called a selection bias.

因为毫无疑问美国是个很成功的国家,因此我们的潜意识中,存在选择性偏差

耶鲁公开课 - 金融市场课程节选

A sinking dollar means a poorer nation and a superpower with a sinking currency is a contradiction in terms."

美元疲软意味着国家的衰落,而美国本身又是个超级大国,两者未免自相矛盾“

斯坦福公开课 - 经济学课程节选