正大光明 upright and open
Explanation
指心怀坦白，言行正派。形容为人正直，行为光明磊落，没有隐瞒欺骗。
It means that one has an honest heart and behaves uprightly and openly. It describes someone who is upright and characterized by clarity and transparency, without hiding or deceiving anything.
Origin Story
话说古代，有一个名叫李明的年轻书生，他为人正直，胸怀坦荡，从不为私利而曲意逢迎。一次，县令要选拔一名幕僚，许多人都想方设法巴结县令，送礼行贿，但李明却始终坚持正大光明，他凭借自己的真才实学，最终在考试中脱颖而出，被县令选中。李明在任期间，公正廉明，为百姓做了许多好事，深受百姓爱戴。他清正廉洁的形象，成为人们学习的榜样。
Once upon a time, in ancient China, there was a young scholar named Li Ming. He was an honest and upright man who never compromised his principles for personal gain. When the county magistrate announced an opening for a clerk, many people tried to curry favor with the magistrate by giving gifts and bribes, but Li Ming always adhered to the principles of integrity and honesty. His genuine talent and hard work finally led him to excel in the examination, and he was chosen by the magistrate. During his term, he was just and upright, and he did many good deeds for the people, earning their deep respect. His clean and honest image set an example for others to follow.
Usage
用于形容人为人正直，行为光明磊落，没有隐瞒欺骗。
Used to describe someone who is upright, characterized by clarity and transparency, and does not hide or deceive anything.
Examples
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他做事光明磊落，正大光明。
ta zuòshì guāngmíng lěiluò, zhèngdà guāngmíng.
He is frank and open in his dealings.
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我们要做一个正大光明的人。
wǒmen yào zuò yīgè zhèngdà guāngmíng de rén。
We should be upright people..