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Trad. 殫精極慮
- to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly
- to rack one's brains
- to leave no stone unturned
Trad. 殫精竭慮
- to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly
- to rack one's brains
- to leave no stone unturned
