一清二楚
这件事我已经调查得一清二楚了。
I've investigated this matter thoroughly and everything is perfectly clear.
completely clear and easy to understand; perfectly transparent
经过仔细的分析，整个计划的利弊一清二楚。
After careful analysis, the pros and cons of the entire plan are perfectly clear.
她把所有的证据都摆出来，真相一清二楚。
She laid out all the evidence, making the truth perfectly clear.
Often used to describe situations where facts or information are fully revealed without ambiguity.
Related Phrases
Pro Tip
Usage in Context
Use '一清二楚' when you want to emphasize that something is so clear that anyone can understand it without confusion. It is stronger than '清楚' (clear) and implies thoroughness and completeness.
Gold Rule
Idiom Structure
The idiom follows the structure '一 + adjective + 二 + adjective', where both adjectives are synonyms or intensifiers. Other examples include '一干二净' (completely clean) and '一心二用' (to do two things at once).
Word Origin
The idiom originates from the combination of two phrases: '一清' (completely clear) and '二楚' (completely distinct), both emphasizing absolute clarity. The structure '一...二...' is a classical Chinese parallel construction used to intensify the meaning.
Usage Notes
This idiom is commonly used in both spoken and written Chinese to emphasize that something is so clear that there is no room for doubt or confusion. It is often used in formal contexts such as reports, explanations, or discussions where clarity is crucial.