Much of highway engineering is devoted to the planning and construction of facilities to drain the highway or street and to carry streams across the highway right-of-way.

许多公路工程都要作一些设施（为公路或街道排水的设施， 供穿过公路用地的溪流通过的设施）的规划和建设。

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Much of highway engineering is devoted to the planning and construction of facilities to drain the highway or street and to carry streams across the highway right-of-way.

许多公路工程都要作一些设施（为公路或街道排水的设施， 供穿过公路用地的溪流通过的设施）的规划和建设。

youdao