Zhōngguó yǒu hěn duō lái zì lìshǐ gùshì de chéngyǔ.
China has many idioms that come from historical stories.
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Most 成语 are four characters and come from ancient stories, literature, or history. There are over 30,000 成语. Common ones like 一举两得 (kill two birds with one stone) are used daily.