TTTan important railway that connects two cities 〔连接两座城市的〕铁路干线
the main line to Moscow
通往莫斯科的铁路干线
—main-lineadjectiveadj [only before noun]
a main-line station
铁路干线车站
Examples from the Corpus
main line• Electrification continued apace during the decade with the majorinvestment on the EastCoastmain line and in East Anglia.• It is difficult to imagine that this was once Britains first electricmain line.• Also, standards of service on many main lineroutes were improved considerably, particularly the inter-urban routes.• Don Robey built an empireworth millions in a city far removed from the main line of entertainment.• Now the main line up the Meuse was severed by the enemy astride it at St. Mihiel.• Well I the uh main linedancers whoo.