rely on one another as cheek and jowl
Fu Che Xiang Jiang, a Chinese idiom, Pinyin is f ǔ ch ē Xi ā ngji ā ng, which means that the two are closely related and interdependent. It's the same as "auxiliary vehicles depend on each other". From Guan Longping.
The origin of Idioms
In Qing Dynasty, ye fangai's poem "Guan Longping" said: "face Shu elbow cool, assistant car prime minister."
Idiom usage
Used as a predicate or attributive; closely related
Chinese PinYin : fǔ chē xiāng jiāng
rely on one another as cheek and jowl
there is a crack to squeeze through. yǒu bīn kě chéng
hate evil as one does one 's enemy. jí è rú chóu
All is gold and all is poverty. jīn jìn qiú bì
tramp over mountains and through ravines. fān shān yuè lǐng