Hello, I am happy to answer your question.
The Changchun light rail underground stations include: Satellite Square Station, Changchun North Station, North Yatai Street Station and Pseudo Palace Station. These four are fully underground stations, of which the last three are standard subway stations.
The semi-underground stations include: Silicon Valley Street Station, Zishan Road Station, and Changying Century City Station. Among them, Silicon Valley Street Station has not been backfilled (open-air underground station), and Zishan Road Station and Changying Century City Station have not been backfilled except for the station part
I hope my answer will be helpful to you!