不打不相识
bù​dǎ​bù​xiāng​shí

no discord no concord

  1. 不 bù adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  2. 打 dǎ verb
    to fight
    to fight; to attack; to go to war
  3. 不 bù adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  4. 相识 相識 xiāng​shí verb
    to be acquainted
    to be acquainted with each other; to get to know one another