忘懷洞 [－怀－]

Jyutping mong4 waai4 dung6
Pinyin wàng huái dòng

Definitions (Wiktionary)
  1. noun
    memory hole (figurative place to which lost or forgotten information is sent)
    • 歷史的忘懷洞
      历史的忘怀洞
      lì shǐ de wàng huái dòng
      the memory hole of history
Examples (Wiktionary)
  1. Mandarin
    历史的忘怀洞
    歷史的忘懷洞
    lì shǐ de wàng huái dòng
    • the memory hole of history