Definition
一清二楚 is a four-character idiom (成语) meaning 'completely clear in every detail'. The characters literally suggest 'one clear, two clear' — the '一…二…' pattern emphasizes thoroughness. You can use it as a predicate (often after 对) to say that someone knows or understands something with total clarity. It carries a stronger and more vivid sense than just 清楚 alone.
f.e.
to be perfectly clear about somethingto understand every detail
Examples
- 一清二楚。Tā duì zhè jiàn shì de láilóngqùmài yī qīng èr chǔ.He is perfectly clear about the whole context of this matter.
- ，一清二楚。Suīrán tā méi shuō, dàn zhēnxiàng dàjiā dōu yī qīng èr chǔ.Although she didn't say it, everyone is crystal clear about the truth.
- ，一清二楚。Zhège wèntí wǒ diàochá le sān gè xīngqī, xiànzài yī qīng èr chǔ.I've investigated this problem for three weeks, and now I understand every detail.
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