maintain the roads的意思|示意

He also notes that the forest service is already struggling to maintain a crumbling network of 386,000 miles of road. Better it fix those roads, he says, than build more.

他同时表示，林业局对维护现有的386,000英里的支离破碎的道路已经非常吃力了，建新路还不如修老路呢。

The bigger roads cost more to maintain so be sure you use only what you really need.

较大道路维护成本较高，因此要确认你只使用你真正需要什么。

The region USES this deduction to subsidize transportation and maintain and build roads.

区域按照此比率进行扣减以资助运输，维护和修筑道路。

The emerging system through which private companies maintain toll roads in some states is a classic BOT model.

私营公司在一些州维护收费公路的新兴系统是典型的 BOT 模式。

The expansion of cities, towns and roads were the main causes of the values' decrease. Despite this aspect, the land-use policies are positive in protection and maintain the balance of ecosystem.

土地利用政策评价在保护、维持生态系统服务功能价值方面起到了积极的作用。

In some states, revenues from the gasoline tax are used to build and maintain roads.

在一些州，汽油税的收入被用来修建和维护道路。