銅牆鐵壁 [铜墙铁－]

Jyutping tung4 coeng4 tit3 bik1
Pinyin tóng qiáng tiě bì

Definitions (CC-CEDICT)
  1. copper wall, iron bastion (idiom); impenetrable defense
Definitions (粵典–words.hk)
  1. 語句
    防禦​非常​穩固
    an impregnable fortress; literally: copper and iron wall
Definitions (Wiktionary)
  1. phrase, figuratively, idiomatic
    something very firm and indestructible
    • 同志們，真正的銅牆鐵壁是什麼？是羣眾，是千百萬真心實意地擁護革命的羣眾。
      同志们，真正的铜墙铁壁是什么？是群众，是千百万真心实意地拥护革命的群众。
      tóng zhì men ， zhēn zhèng de tóng qiáng tiě bì shì shén me ？ shì qún zhòng ， shì qiān bǎi wàn zhēn xīn shí yì de yōng hù gé mìng de qún zhòng ．
      Comrades! What is a true bastion of iron? It is the masses, the millions upon millions of people who genuinely and sincerely support the revolution.
  2. phrase, idiomatic
    impregnable and indestructible wall or barrier
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）
Examples (粵典–words.hk)
  1. Cantonese
    铜墙铁壁
    銅牆鐵壁
    tung4 coeng4 tit3 bik1
    • copper wall iron bastion; figuratively, a barrier that is impossible to pass
Examples (Wiktionary)
  1. Mandarin
    同志们，真正的铜墙铁壁是什么？是群众，是千百万真心实意地拥护革命的群众。
    同志們，真正的銅牆鐵壁是什麼？是羣眾，是千百萬真心實意地擁護革命的羣眾。
    tóng zhì men ， zhēn zhèng de tóng qiáng tiě bì shì shén me ？ shì qún zhòng ， shì qiān bǎi wàn zhēn xīn shí yì de yōng hù gé mìng de qún zhòng ．
    • Comrades! What is a true bastion of iron? It is the masses, the millions upon millions of people who genuinely and sincerely support the revolution.