Additional estimation problems can arise when the pace of a project has to change in mid-stream, and, therefore, new resources must be added.

当项目运行到中间需要增加资源时，会出现另外的问题。

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An economist involved in the reforms of the mid-1990s expects their resumption, but at a slower pace.

一位参与了上世纪90年代中期变革的经济学家期待他们能继续变革，但要以较慢的步伐进行。

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China's growth rate fell to 6.1% in the year to the first quarter, less than half its pace in mid-2007.

截至到今年第一季度，中国的增长率下落至6.1%，还不及2007年中期的一半。

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China's growth rate fell to 6.1% in the year to the first quarter, less than half its pace in mid-2007.

截至到今年第一季度，中国的增长率下落至6.1%，还不及2007年中期的一半。

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