不打不相識

1. • lit. don't fight, won't make friends (idiom) an exchange of blows may lead to friendship
2. • no discord, no concord

Character by character

• 不(bù)no
• 打(dǎ)a semantically light, transitive verb that is combined with various grammatical objects to form compound verbs and verb-object phrases with a diverse range of meanings
• 不(bù)no
• 相(xiāng)surname Xiang
• 識(shí)know