据粗略统计，中国同地区国家的承包合同金额累计达到1200亿美元，为地区国家的基础设施建设做了大量投入，修了很多道路桥梁，建了很多工厂。

According to rough statistics, China's accumulated contractual value in the region totaled US$$120 billion, including a substantial input in infrastructure, such as roads, bridges and factories.

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