gàn​xiàn

trunk line

干线 (幹線) gàn​xiàn
trunk line noun
the primary route or main line within a transportation, communication, or power network

Because the main road is under repair, buses traveling between the two locations have to take a temporary detour.

Frequency

Movie subtitles
0.600 per million appears in 0% of films
Written text
5.94 per million

Sources

Definitions
CC-CEDICT