mainline

The principal route or artery of a transportation system, such as a railway or highway.

ریشه

From main + line, where 'main' refers to something principal or chief, and 'line' refers to a route or path.

مثال

• The mainline train will take you directly to the city center.
• The accident caused a major disruption on the mainline highway.
• The mainline of the subway system is currently under construction.

ترکیب‌های رایج

Mainline railway Mainline highway Mainline bus service