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Open the tool →刮垢磨痕 (guā gòu mó hén) is a Chinese idiom (chengyu) meaning “to meticulously refine”.
刮垢磨痕 is pronounced guā gòu mó hén in Mandarin Chinese.
Literally, 刮垢磨痕 means “Scrape off grime, polish away marks”. It is used to mean “to meticulously refine”.
涤除污垢,磨除伤痕。比喻仔细琢磨,精益求精。