一清二楚
- na.be crystal clear
- 网络as plain as the nose in your face; Clear; as clear as daylight

一清二楚
1.be crystal clear; as clear as daylight [day]; as clear as noon; as dear as the sun at noon; as plain as the nose in your face; (as) clear [plain] as noonday; (as) clear as the sun at noonday; beyond the shadow of a doubt; clear as day; explicit; patently; perfectly clear
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