其中一个国家的土地面积不足一平方英里。
One of these countries contains less than a square mile of land.
位于费城市中心区的独立国家公园被称为“美国最具历史意义的一平方英里”。
The Independence National Historic Park is located right at the heart of downtown Philadelphia.
这些淤泥,凝结后,足以堆成一块高达二百四十一英尺,面积为一平方英里的大土块儿。
This mud, solidified, would make a mass a mile square and two hundred and forty-one feet high.
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