知己知彼 (zhī jǐ zhī bǐ) — to know oneself and know one's opponent (idiom); to be well-informed about both sides

定義

A set phrase from military strategy: you must understand your own strengths and weaknesses AND those of your opponent before acting. 彼 ('the other side') is broader than just 'enemy' — it can mean a rival, competitor, or situation you face.

idiom
to know oneself and know one's opponent (idiom)to be well-informed about both sides

例文

  • 知己知彼
    Zuò shēng yi yào zhī jǐ zhī bǐ, cái néng chéng gōng.
    In business you need to know yourself and know your opponent to succeed.
  • 知己知彼
    zhī jǐ zhī bǐ, Bǎi zhàn bú dài, zhè shì bīng fǎ de zhòng yào yuán zé.
    Know yourself and know your opponent, and you'll win a hundred battles — this is an important principle of military strategy.
  • 知己知彼
    Kǎo shì qián yào zhī jǐ zhī bǐ, liǎo jiě zì jǐ de ruò diǎn hé kǎo shì fàn wéi.
    Before an exam you should know yourself and know the exam — understand your weaknesses and the exam scope.
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