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1·In order to set up and improve this system, we must downsize staffs and improve efficiency.

为了建立和完善这一新体系，我们必须要减员增效。

2·In order to set up and improve this system, we must downsize staffs and improve efficiency in our future highway management work.

而要建立和完善这一新体系，对于未来路政管理工作而言，必须减员增效。