干线

The railway line comes to the airport.

铁道干线直达飞机场。

Vehicles often bunches on the big highways.

在干线公路上, 交通往往十分拥挤。

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通干线的交汇。

The Trans-Canada highway is a federal responsibility.

横跨加拿大的交通干线是由联邦政府管理的。