Spring and Autumn (playing an idiom) Guess what an idiom is according to these two words.

Idiom: about a year.

About a year [y and niá n bá n z m: I]

[Interpretation] One and a half years. Generally refers to a period of time.

[Source] Yuan's "Respecting Virtue without Violating the Old": "Old General; You have patience; But a year and a half; My ministers promised that you would return to North Korea. "