be inextricably involved
The Chinese idiom, Pinyin is n á NF ē NN á NJI ě, which means that the two sides quarrel, struggle, competition, etc., and it is difficult to separate; sometimes it also describes that the relationship between the two sides is very close and inseparable. From the romance of Fengshen.
The origin of Idioms
The sixty ninth chapter of the romance of Fengshen written by Xu Zhonglin of Ming Dynasty: "one will make Wugu tuotian fork; one will make baling ripe copper hammer; one will make five claws rotten silver grasp; three will fight, and it is hard to separate."
Idiom usage
The two sides have a good feeling. In this game of chess, it's hard for the two of them to separate.
Analysis of Idioms
It's hard to separate
Chinese PinYin : nán fēn nán jiě
be inextricably involved
Wind, tiger, cloud and Dragon. fēng hǔ yún lóng