2 sentences for 运行 (yùn​xíng — run (service))

1. 这列火车正在京沪线上运行。

   zhè liè huǒ​chē zhèng​zài Jīng Hù xiàn shàng yùn​xíng.

   This train is running on the Beijing-Shanghai line.

   Source: Dong Chinese Dictionary

2. 这辆公交车只在这个区间内运行。

   zhè liàng gōng​jiāo​chē zhǐ zài zhè gè qū​jiān nèi yùn​xíng.

   This bus only runs within this section.

   Source: Dong Chinese Dictionary