变化无穷 ever-changing
Explanation
形容变化很多，没有尽头。
Describes many changes without end.
Origin Story
很久以前，在一个神秘的山谷里，住着一群精灵。他们的生活并非一成不变，而是随着季节的变换而变化无穷。春天，山谷里百花盛开，精灵们穿着五彩缤纷的衣裳，载歌载舞，庆祝春天的到来。夏天，山谷里绿树成荫，精灵们在清澈的溪流中嬉戏玩耍，享受夏日的清凉。秋天，山谷里树叶变黄，精灵们开始忙碌起来，收集食物，准备过冬。冬天，山谷里白雪皑皑，精灵们则躲在温暖的巢穴里，静静地等待着春天的到来。他们的生活，就像这山谷里的景色一样，变化无穷，却充满生机与活力。
Long ago, in a mystical valley, lived a group of elves. Their lives were not static, but changed endlessly with the seasons. In spring, the valley was filled with blooming flowers, and the elves, dressed in colorful clothes, sang and danced to celebrate the arrival of spring. In summer, the valley was shaded by lush green trees, and the elves played in the clear streams, enjoying the coolness of summer. In autumn, the leaves in the valley turned yellow, and the elves busied themselves collecting food to prepare for the winter. In winter, the valley was covered in white snow, and the elves hid in their warm nests, quietly waiting for the arrival of spring. Their lives, like the scenery in this valley, were ever-changing, yet full of life and vitality.
Usage
用于形容事物变化多端，没有尽头。
Used to describe things that change a lot, without end.
Examples
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大千世界，变化无穷，我们应该学会适应。
dà qiān shìjiè, biànhuà wú qióng, wǒmen yīnggāi xuéhuì shìyìng
The world is full of changes, and we should learn to adapt.
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时尚变化无穷，稍不留神就会落伍。
shíshàng biànhuà wú qióng, shāo bù liúshén jiù huì luòwǔ
Fashion is ever-changing, and it's easy to fall behind.
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自然界的景象变化无穷，令人叹为观止。
zìránjiè de jǐngxiàng biànhuà wú qióng, lìng rén tàn wéi guānzhǐ
The scenes of nature are ever-changing, which is amazing.