This third system has one single global superpower, the US, but a series of regional superpowers.

这个格局中只有一个全球性超级大国——美国，以及一系列的分散于各地区的大国。

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This is our system and the superpower is superpower.

这是我们的系统，超级大国就是超级大国。

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How is the world's only superpower home to an education system that lacks the highly productive, competitive model that other uniquely American industries embrace?

FORBES: Magazine Article

Before 1914, Britain was the superpower that policed the global economic system.

ECONOMIST: This time, emerging markets are for real

Building a world-class transportation system is part of what made us a economic superpower.

WHITEHOUSE: Address by the President to a Joint Session of Congress