上訪

to seek an audience with higher-ups (esp. government officials) to petition for sth

used in 上聲|上声[shang3 sheng1]

(bound form) up; upper; above; previous / first (of multiple parts) / to climb; to get onto; to go up / to attend (class or university) / (directional complement) up / (noun suffix) on; above

(bound form) to visit / to call on / to seek / to inquire / to investigate