However, the western region development is a long-term systematic project.
然而，西部开发是一个长期的系统工程。
However, the % western region development is a long-term systematic project.
然而，西部开发是一个长期的系统工程。
The Western Region Development of China experienced several stages in the 20th century.
20世纪中国西部开发经历了几个阶段。
The Western Region Development of China experienced several stages in the 20th century.
20世纪中国西部开发经历了几个阶段。
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