襟怀坦白 open and honest
Explanation
襟怀：胸怀；坦白：正直无私。形容心地纯洁，光明正大。
襟怀 (jīn huái) means bosom, mind; 坦白 (tǎn bái) means honest, frank. The idiom describes someone with a pure heart and upright character.
Origin Story
从前，在一个小山村里住着一位名叫阿诚的年轻人。阿诚为人善良，襟怀坦白，深受村民的爱戴。一天，村里丢失了一件重要的物件，村民们都人心惶惶。村长怀疑是外村人所为，并打算严加盘查。阿诚知道事情的真相，他明白真正的凶手就在村内，但由于凶手是他的好朋友，他心里很犹豫。然而，阿诚最终还是克服了私情，决定向村长坦白实情。他来到村长面前，一五一十地将事情的来龙去脉说了出来。村长听了阿诚的讲述后，大为感动，同时也对阿诚的襟怀坦白赞叹不已。最终，凶手被绳之以法，村子恢复了平静。阿诚的故事在村子里广为流传，人们都称赞他是一个具有高尚品德的人，他的襟怀坦白也成为村子里流传的美谈。
Once upon a time, in a small mountain village, lived a young man named A Cheng. A Cheng was kind and honest, and was deeply loved by the villagers. One day, an important item was lost in the village, and the villagers were very worried. The village head suspected that it was done by outsiders and planned to strictly check them. A Cheng knew the truth, he knew that the real culprit was in the village, but the culprit was his good friend and he hesitated. However, A Cheng finally overcame his personal feelings and decided to confess to the village head. He came before the village head and explained the whole story in detail. After listening to A Cheng's explanation, the village head was deeply touched and admired A Cheng's frankness. In the end, the criminal was brought to justice, and the village regained its tranquility. A Cheng's story was widely spread in the village, and people praised him for his noble character and his honesty became a beautiful story passed down in the village.
Usage
形容人心地纯洁，光明正大。
To describe someone with a pure heart and upright character.
Examples
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他襟怀坦白，从不隐瞒自己的想法。
ta jinhuai tanbai, cong bu yinman ziji de xiangfa.
He is frank and never hides his thoughts.
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李明襟怀坦白，深受同事的信赖。
li ming jinhuai tanbai, shen shou tongshi de xinlai
Li Ming is frank and trustworthy, highly respected by his colleagues.