交通干道的英文：
highway
This is the main traffic artery.
这条路是主要交通干道。
n. 公路；捷径
No highway option.
没什么捷径可言。
The parade stalked along the highway.
游行队伍沿着公路阔步前进。
A fast highway is being built.
一条高速公路正在修建。
The hilly country has a highway.
那片丘陵地区有一条公路。
We are on the highway to progress.
我们在走向进步。