但从目前我国公路建设资金来源看，公路建设资金缺口大。

But seen from capital source of road construction of our country at present, the construction fund shortfall of the highway is large.

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长期以来，资金缺口一直是制约城市基础设施建设的瓶颈问题。

For a long time, a lack of capital has been constrained urban infrastructure bottlenecks.

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