唇齒相依 [－齿－－]

Jyutping seon4 ci2 soeng1 ji1
Pinyin chún chǐ xiāng yī

Definitions (CC-CEDICT)
  1. lit. as close as lips and teeth (idiom); closely related
  2. interdependent
Definitions (粵典–words.hk)
  1. 語句
    關​係​密切​，​互相​依賴
    interdependent; closely related; literally: lips and teeth rely on each other
    • 戰友唇齒相依，一旦割蓆就會全軍覆沒。
      战友唇齿相依，一旦割席就会全军覆没。
      zin3 jau5 seon4 ci2 soeng1 ji1, jat1 daan6 got3 zek6 zau6 wui5 cyun4 gwan1 fuk1 mut6.
      Comrades are close to one another. Once split, they will be all done.
Examples (粵典–words.hk)
  1. Cantonese
    战友唇齿相依，一旦割席就会全军覆没。
    戰友唇齒相依，一旦割蓆就會全軍覆沒。
    zin3 jau5 seon4 ci2 soeng1 ji1, jat1 daan6 got3 zek6 zau6 wui5 cyun4 gwan1 fuk1 mut6.
    • Comrades are close to one another. Once split, they will be all done.