干线

The railway line comes to the airport.

铁道直达飞机场。

Vehicles often bunches on the big highways.

在公路上, 交往往十分拥挤。

This is the place where the three main arteries of West London traffic met.

这就是伦敦西部三条主要交交汇。

The Trans-Canada highway is a federal responsibility.

横跨加交是由联邦政府管理。