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Open the tool →研核是非 (yán hé shì fēi) is a Chinese idiom (chengyu) meaning “to carefully examine and evaluate what is right and what is wrong”.
研核是非 is pronounced yán hé shì fēi in Mandarin Chinese.
Literally, 研核是非 means “Study and verify right and wrong”. It is used to mean “to carefully examine and evaluate what is right and what is wrong”.
核:对照,考核。研究考核什么是对,什么是错