变幻无常 fickle
Explanation
指事物经常变化，没有规律性。
Refers to things that change frequently and without regularity.
Origin Story
从前，有一个名叫小雨的女孩，她就像这天气一样，变幻无常。今天她兴高采烈地去上学，明天却闷闷不乐地躲在家里。有时她热情似火，有时她冷漠如冰。她的朋友们常常被她捉摸不透的情绪搞得晕头转向。有一天，小雨的朋友小明问她：“小雨，你为什么心情变化这么大呢？就像这天气一样，变幻无常。”小雨笑着说：“我也不清楚，也许这就是我的性格吧。不过，我会努力尝试控制自己的情绪，不让它影响到别人。”后来，小雨渐渐学会了控制自己的情绪，变得更加稳定和可靠。
Once upon a time, there was a girl named Xiaoyu, who was as fickle as the weather. Today she would go to school happily, but tomorrow she would sulk at home. Sometimes she was passionate, sometimes she was cold as ice. Her friends were often confused by her unpredictable moods. One day, Xiaoyu's friend Xiaoming asked her, “Xiaoyu, why do your moods change so much? It’s just like the weather, so fickle.” Xiaoyu smiled and said, “I don't know either. Maybe it’s just my personality. But I will try my best to control my emotions so that it won't affect others.” Later on, Xiaoyu gradually learned to control her emotions and became more stable and reliable.
Usage
用于形容事物变化无常，没有规律。
Used to describe the capriciousness and unpredictability of things.
Examples
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这天气变幻无常，一会儿晴空万里，一会儿又下起了倾盆大雨。
zhè tiānqì biànhuàn wú cháng, yīhuǐ'er qíngkōng wànlǐ, yīhuǐ'er yòu xià le qīngpén dà yǔ.
The weather is fickle; it's sunny one moment and pouring rain the next.
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他的心情变幻无常，让人捉摸不透。
tā de xīnqíng biànhuàn wú cháng, ràng rén zhuōmō bù tòu。
His mood is capricious and unpredictable.