不解之緣 [－－－缘]

Jyutping bat1 gaai2 zi1 jyun4
Pinyin bù jiě zhī yuán

Definitions (Wiktionary)
  1. phrase, idiomatic
    unbreakable bond
Examples (Wiktionary)
  1. Mandarin
    不解之缘
    不解之緣
    bù jiě zhī yuán
    • indissoluble bond