煞费苦心
Traditional (Taiwan): 煞費苦心
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Synonyms and antonyms
Synonyms 近义词
Antonyms 反义词
Telling them apart
煞费苦心 means taking great pains and effort, usually over something good, and is commendatory with a narrower range. 费尽心机 means racking one's brains and using every means to scheme, and is neutral, so it can apply to good or bad ends.
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