美国部分地区有一种叫蹄盖蕨的植物。

In some parts of the U.S., there is a plant called lady fern (蹄盖蕨).

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这个地区有着自己的内部权力平衡，在此背景下，许多国家都欢迎美国的存在。

The region has its own internal balance of powers, and in that context, many states welcome an American presence in the region.

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就在美国本土，仍然存在大量的地区有待探索。

And there are still lots of areas right here in the U. S. that need to be explored.

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The idea was that this is better it's more democratic; each region of the United States has its own bank.

核心理念是这样会更好，这样更民主；,美国的每一个地区都有它自己的银行。

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There are other factors involved too like high energy prices, but certainly U.S. policy is affecting that, but we're also affected by the rest of the world.

还有诸如能源价格高昂等其它因素,但美国的政策肯定是有影响,但世界其它地区的情况也影响了我们

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There's a group of people in the United States and elsewhere who studied something called the Built Environment- how the environment is built affects how much physical activity we get.

在美国以及其他地区有这样一群人,进行着被称为环境构建的研究,研究环境的构建是怎样影响我们的活动量

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