as close as one
It's a Chinese idiom. Pinyin is Q ì h é J ī NL á n, which means to compare the deep friendship between friends. It comes from the book of changes.
Idiom explanation
Fit: join in; Jinlan: friends.
The origin of Idioms
In the book of changes, Xici Part 1: "if two people are of one mind, their interest will be broken; if they are of one mind, their smell will be like orchid."
Idiom usage
It is a metaphor of deep friendship. example self fit and master's love, fit Jinlan. Wang Tingna, Ming Dynasty
as close as one
A snipe and a clam fight for a profit - yù bàng xiāng zhēng,yú wēng dé lì
Cherish one's pearls and treasure one's jade - huái zhū bào yù
rack one's brains without results - wǎng fèi xīn lì
Four in the evening and three in the morning - mù sì cháo sān