by Xinhua writer Jiang Chao
ISLAMABAD, Jan. 9 (Xinhua) — A familiar broadcast sound from the Dera Gujran station reminded Mohammad Nauman of the first stop of his career. In 2020, the young Pakistani man worked in Lahore to prepare the opening of the Orange Line, the country’s first metro train service, and witnessed the friendship between the locals and Chinese workers.
Officially open to traffic on Oct