金甌無缺 [－瓯无－]

Jyutping gam1 au1 mou4 kyut3
Pinyin jīn ōu wú quē

Definitions (Wiktionary)
  1. phrase, idiomatic, literary
    faultless golden chalice
  2. phrase, figuratively, idiomatic, literary
    firm uninvaded nation
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）