九九歸一

九九归一
jiǔjiǔguīyī
  1. nine divide by nine is one (abacus rule)
  2. when all is said and done

CEDICT

珠算中歸除和還原的口訣。指轉來轉去又還了原，比喻歸根結底。如：「這個賬隨你怎麼算，到最後九九歸一，吃虧的還是我。」也作「九九歸原」。

重編國語辭典

Entry Composition

1 九九 jiǔjiǔ
  1. (literary) last of the nine nine-day periods; ninth nine-day period
  2. (literary) nine nine-day periods (eighty-one days) starting from a solstice (usually the winter solstice)
  3. Alternative term for 重陽節／重阳节 (Chóngyángjié, “Double Ninth Festival”).
  4. eighty-one; nine nines
  5. last of the nine nine-day periods; ninth nine-day period
  6. multiplication table; nine-nine
  7. nine nine-day periods (eighty-one days) starting from a solstice (usually the winter solstice)
2 歸 guī
  1. to return
  2. to go back to
  3. to give back to
  4. (of a responsibility) to be taken care of by
  5. to belong to
  6. to gather together
  7. (used between two identical verbs) despite
  8. to marry (of a woman) (old)
  9. division on the abacus with a one-digit divisor
3 一 yī
  1. one
  2. single
  3. a (article)
  4. as soon as
  5. entire; whole; all; throughout
  6. "one" radical in Chinese characters (Kangxi radical 1)
  7. also pr. yāo for greater clarity when spelling out numbers digit by digit

Related entries

說一千，道一萬 shuōyīqiān,dàoyīwàn
  1. when all is said and done
  2. at the end of the day
滿打滿算 mǎndǎmǎnsuàn
  1. taking everything into account (idiom)
  2. when all is said and done
到底 dàodǐ
  1. finally
  2. in the end
  3. when all is said and done
  4. after all
  5. to the end
  6. to the last
你到底是谁？

Who are you, anyway?

Source: Tatoeba

畢竟 bìjìng
  1. after all
  2. all in all
  3. when all is said and done
  4. in the final analysis
你毕竟是对的。

After all, you're right.

Source: Tatoeba

究竟 jiūjìng
  1. to go to the bottom of a matter
  2. after all
  3. when all is said and done
  4. (in an interrogative sentence) finally
  5. outcome
  6. result
究竟谁要负责？

Who exactly is responsible?

Source: Tatoeba

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