The book is worth the book
This is a Chinese idiom. Pinyin is di ā NSH ā OSH é B ě n, which means to pay a loss. It comes from the Ming Dynasty Jia Zhongming's Dui Yu Shu.
Idiom usage
It means losing money
The origin of Idioms
The second discount of Jia Zhongming's Yu Shu in Ming Dynasty: "if you don't buy money losing goods like me, you'll keep the comfort nest which is far away from the whole body."
Idiom explanation
Advance money and lose money. Tip, the market language of money.
The book is worth the book
recognize the whole through observation of the part - chǔ rùn ér yǔ