波澜不惊 calm and tranquil
Explanation
形容水面平静，没有风浪。也比喻形势平静，没有大的变故。
Describes a calm water surface without waves. It is also used to describe a calm situation and the absence of major changes.
Origin Story
很久以前，在一个美丽的小山村里，住着一位名叫阿福的渔民。他每天清晨都会划着小船去湖中捕鱼。一天清晨，阿福像往常一样来到湖边，准备开始一天的劳作。然而，今天与往日不同，湖面异常平静，波澜不惊，宛如一面巨大的明镜，倒映着周围的青山绿水。阿福感到十分惊讶，他从未见过如此平静的湖面，这让他觉得有些不安。他小心翼翼地划着小船，深入湖中，仔细观察着周围的一切。他发现，不仅湖面平静，就连湖中的鱼儿也显得格外安静，没有往日的嬉戏追逐。阿福心里更加疑惑不解。他捕了几个小时的鱼，却只收获寥寥，这让他更加感到不安。回到家中，阿福向村里的老人们讲述了自己的经历，老人们告诉他，在很久以前，湖中曾发生过一场巨大的风暴，许多鱼儿都被卷走。此后，湖面便一直如此平静。阿福听后，才明白湖面的平静并非偶然，而是经历了巨大的变故之后的一种沉寂。从此以后，阿福对待生活也更加谨慎小心，懂得珍惜眼前来之不易的平静。
Long ago, in a beautiful mountain village, there lived a fisherman named A Fu. Every morning, he would row his boat to the lake to fish. One morning, A Fu came to the lake as usual, ready to start his day's work. However, today was different. The lake surface was unusually calm, like a huge mirror reflecting the surrounding green mountains and water. A Fu was surprised; he had never seen such a calm lake, which made him feel a little uneasy. He carefully rowed his boat into the lake and observed everything around him carefully. He found that not only was the lake calm, but even the fish in the lake seemed unusually quiet, without their usual playfulness and chasing. A Fu was even more puzzled. He fished for several hours but only had a meager harvest, which made him even more uneasy. Back home, A Fu told the village elders about his experience. The elders told him that long ago, there had been a huge storm on the lake, which swept away many fish. Since then, the lake surface has remained so calm. After hearing this, A Fu understood that the calmness of the lake was not accidental, but a silence after a great change. From then on, A Fu became more cautious in his life, learning to cherish the hard-won peace.
Usage
用于形容事物平静稳定，没有大的波动。
Used to describe things that are calm and stable, without large fluctuations.
Examples
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湖面波澜不惊，倒映着蓝天白云。
hú miàn bō lán bù jīng, dǎoyìngzhe lántiān báiyún
The lake surface is calm and serene, reflecting the blue sky and white clouds.
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经过几年的努力，公司发展稳定，波澜不惊。
jīngguò jǐ nián de nǔlì, gōngsī fāzhǎn wěndìng, bō lán bù jīng
After years of hard work, the company is stable and developing smoothly.