不乏先例 not lacking in precedent
Explanation
不乏先例的意思是：有很多以前的事情可以作为例子。它主要用来指代某种现象或事件并非罕见，在历史或现实中都有类似的例子可以参考。
The meaning of 'bù fá xiān lì' is: there are many examples from the past. It is mainly used to refer to a phenomenon or event that is not rare, and there are similar examples in history or reality that can be referred to.
Origin Story
在古代的中国，有很多关于英雄人物的故事。例如，在春秋战国时期，有许多诸侯国都渴望统一中国，而秦国最终成功了，这在当时并不奇怪，因为类似的例子在历史上有许多。人们都相信，只要有足够的决心和实力，任何国家都能够实现统一。因此，人们不会对秦国的崛起感到惊讶，反而会认为这是历史的必然趋势。
In ancient China, there are many stories about heroic figures. For example, during the Warring States period, there were many principalities that were eager to unify China, and Qin finally succeeded. This was not surprising at that time, because there were many similar examples in history. People believed that as long as there was enough determination and strength, any country could achieve unification. Therefore, people were not surprised at the rise of Qin, but rather saw it as the inevitable trend of history.
Usage
这个成语通常用来表示某种事件或现象并非偶然，在历史上或现实生活中都有类似的例子可以参考。常用于评价、论证、说明等场合。
This idiom is often used to indicate that a certain event or phenomenon is not accidental, and there are similar examples in history or real life for reference. It is often used in evaluation, argumentation, and explanation.
Examples
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近年来，很多年轻的企业家都成为了创业的先锋，他们的成功不乏先例，给许多人带来了启迪。
jìn nián lái, hěn duō nián qīng de qǐ yè jiā dōu chéng wéi le chuàng yè de xiān fēng, tā men de chéng gōng bù fá xiān lì, gěi xǔ duō rén dài lái le qǐ dí.
In recent years, many young entrepreneurs have become pioneers in entrepreneurship. Their success is not an isolated case and has inspired many people.
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历史上的成功案例不乏先例，只要我们用心学习和借鉴，也能取得成功。
lì shǐ shàng de chéng gōng àn lì bù fá xiān lì, zhǐ yào wǒ men yòng xīn xué xí hé jiè jiàn, yě néng qǔ dé chéng gōng.
There are many historical examples of success, as long as we study and learn from them, we can also succeed.
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这种现象在古代社会并不鲜见，不乏先例。
zhè zhǒng xiàn xiàng zài gǔ dài shè huì bìng bù xiān jiàn, bù fá xiān lì.
This phenomenon is not uncommon in ancient society, there are many precedents.
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我们不必担心没有经验，因为类似的情况不乏先例，我们可以从中汲取教训。
wǒ men bù bì dān xīn méi yǒu jīng yàn, yīn wéi lèi sì de qíng kuàng bù fá xiān lì, wǒ men kě yǐ cóng zhōng jí qǔ jiào xùn.
We don't have to worry about lack of experience, because there are many examples of similar situations, we can learn from them.
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这种做法在以往已经有很多例子，不乏先例，我们应该吸取经验教训。
zhè zhǒng zuò fǎ zài yǐ wǎng yǐ jīng yǒu hěn duō lì zi, bù fá xiān lì, wǒ men yīng gāi xī qǔ jīng yàn jiào xùn.
This practice has been practiced many times in the past, there are many precedents, we should learn from the experience.