銅牆鐵壁

Chinese

		copper	wall	iron	wall; rampart
trad. (銅牆鐵壁)		銅	牆	鐵	壁
simp. (铜墙铁壁)		铜	墙	铁	壁

Pronunciation

Mandarin
(Pinyin): tóngqiángtiěbì

(Zhuyin): ㄊㄨㄥˊ ㄑㄧㄤˊ ㄊㄧㄝˇ ㄅㄧˋ
Cantonese (Jyutping): tung⁴ coeng⁴ tit³ bik¹
Southern Min (Hokkien, POJ): tâng-chhiûⁿ-thih-piah

Mandarin
- (Standard Chinese)⁺
  - Hanyu Pinyin: tóngqiángtiěbì
  - Zhuyin: ㄊㄨㄥˊ ㄑㄧㄤˊ ㄊㄧㄝˇ ㄅㄧˋ
  - Tongyong Pinyin: tóngciángtiěbì
  - Wade–Giles: tʻung²-chʻiang²-tʻieh³-pi⁴
  - Yale: túng-chyáng-tyě-bì
  - Gwoyeu Romatzyh: torngchyangtieebih
  - Palladius: тунцянтеби (tuncjantebi)
  - Sinological IPA ^(key): /tʰʊŋ³⁵ t͡ɕʰi̯ɑŋ³⁵ tʰi̯ɛ²¹⁴⁻²¹ pi⁵¹/
Cantonese
- (Standard Cantonese, Guangzhou–Hong Kong)⁺
  - Jyutping: tung⁴ coeng⁴ tit³ bik¹
  - Yale: tùhng chèuhng tit bīk
  - Cantonese Pinyin: tung⁴ tsoeng⁴ tit⁸ bik⁷
  - Guangdong Romanization: tung⁴ cêng⁴ tid³ big¹
  - Sinological IPA ^(key): /tʰʊŋ²¹ t͡sʰœːŋ²¹ tʰiːt̚³ pɪk̚⁵/
Southern Min
- (Hokkien: Xiamen, General Taiwanese)
  - Pe̍h-ōe-jī: tâng-chhiûⁿ-thih-piah
  - Tâi-lô: tâng-tshiûnn-thih-piah
  - Phofsit Daibuun: dangchviu'tihpiaq
  - IPA (Kaohsiung): /taŋ²³⁻³³ t͡sʰiũ²³ tʰi(ʔ)³²⁻⁴¹ piaʔ³²/
  - IPA (Taipei): /taŋ²⁴⁻¹¹ t͡sʰiũ²⁴ tʰi(ʔ)³²⁻⁵³ piaʔ³²/
  - IPA (Xiamen): /taŋ²⁴⁻²² t͡sʰiũ²⁴ tʰi(ʔ)³²⁻⁵³ piaʔ³²/

Idiom

銅牆鐵壁

impregnable and indestructible wall or barrier
(figuratively) something very firm and indestructible
- 同志們，真正的銅牆鐵壁是什麼？是群眾，是千百萬真心實意地擁護革命的群眾。 [MSC, trad.]
  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。 [MSC, simp.]
  From: 1934, 毛澤東 (Mao Zedong), 《關心群眾生活，注意工作方法》 (Be Concerned with the Well-Being of the Masses, Pay Attention to Methods of Work), 《毛澤東選集》 (Selected Works of Mao Tse-tung), English translation based on the Foreign Language Press edition
  Tóngzhìmen, zhēnzhèng de tóngqiángtiěbì shì shénme? Shì qúnzhòng, shì qiānbǎiwàn zhēnxīnshíyì de yōnghù gémìng de qúnzhòng. [Pinyin]
  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.