lì​xíng​gōng​shì

formality

例行公事 lì​xíng​gōng​shì
formality verb
an action performed solely for the sake of form or to satisfy a requirement, often perfunctorily

Frequency

Movie subtitles
2.83 per million appears in 1% of films
Written text
0.503 per million

Sources

Definitions
CC-CEDICT