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Jyutping lou5 sei2 bat1 soeng1 wong5 lai4
Pinyin lǎo sǐ bù xiāng wǎng lái

Definitions (Wiktionary)
  1. phrase, idiomatic, of two entities
    to never have contact with each other; to never interact

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Jyutping lou5 sei2 bat1 soeng1 wong5 loi4
Pinyin lǎo sǐ bù xiāng wǎng lái

Definitions (粵典–words.hk)
  1. x
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (Wiktionary)
  1. Mandarin
    今后他走他的阳关道,我走我的独木桥,老死不相往来。
    今後他走他的陽關道,我走我的獨木橋,老死不相往來。
    jīn hòu tā zǒu tā de yáng guān dào , wǒ zǒu wǒ de dú mù qiáo , lǎo sǐ bù xiāng wǎng lái .
    • From now on, he goes his way and I'll go mine. We will be two parallel worlds.