Is the difference between core and periphery a problem?

核心国和边缘国之间的经济差异是个问题吗？

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This division of core and periphery is common in many countries.

这种核心地带与边缘地带的区别，在很多国家都存在。

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This division of core and periphery is common in many countries.

这种核心地带与边缘地带的区别，在很多国家都存在。

youdao