今天国家和区域间的文化交流越来越密切。
Today the cultural communication between different countries and regions has been intensified.
分工的依据是区域间农产品比较成本的大小。
The comparative advantage is the basis of farm products regional division.
你改进的机会区域间会冒出来。
你改进的机会区域间会冒出来。
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