guā​gòu​mó​guāng

to polish and refine

刮垢磨光 guā​gòu​mó​guāng
to polish and refine
to scrape off dirt and polish an object until it is shiny
to strive for perfection
figuratively, to take great pains to train a person, improve one's character, or refine a piece of writing or scholarship to perfection

Frequency

Written text
0.003 per million

Sources

Frequency data
BCC Corpus (BLCU)