明明白白 clear and straightforward
Explanation
指非常清楚，明确无误。也指光明磊落，没有隐瞒。
Means very clear, unambiguous. It also means upright and open, without concealment.
Origin Story
老张是一位经验丰富的会计师，他总是把账目整理得明明白白，确保每一个数字都准确无误。有一次，公司发生了一笔巨额资金损失，所有人都感到困惑不解。老张仔细地检查每一笔账目，最终发现是由于一名员工的失误造成的。他将调查结果写成了一份明明白白的报告，详细地列出了损失的原因、责任人以及补救措施，使得公司领导能够迅速采取行动，将损失降到最低。老张的认真负责和明明白白的办事风格赢得了公司上下的一致好评。
Old Zhang was an experienced accountant, he always kept his accounts clear and accurate, making sure every number was correct. Once, the company suffered a huge financial loss, everyone was puzzled. Old Zhang carefully checked every account, and finally found that it was caused by an employee's mistake. He wrote a clear report on the investigation results, which detailed the causes of the loss, the person responsible, and the remedial measures, so that the company leaders could take action quickly to minimize the losses. Old Zhang's diligence and clear business style won the unanimous praise of the company.
Usage
通常作谓语、定语、状语；表示清楚明白，明确无误。
Usually used as a predicate, attributive, or adverbial; to indicate something clearly and without ambiguity.
Examples
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会议记录写得明明白白，一目了然。
huiyi jilu xie de mingmingbai bai, yimu liaran
The meeting minutes were clear and straightforward.
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他对事情的经过解释得明明白白，没有半点隐瞒。
ta dui shiqing de jingguo jieshi de mingmingbai bai, meiyou ban dian yinman
He explained the course of events clearly and without any concealment..