Precise long-tail words refer to relatively long and very specific search terms, usually consisting of 3 or more words. These keywords often relate to specific topics and needs, and are therefore more likely to generate high-quality traffic and conversions. Compared with broad keywords, precise long-tail keywords usually have lower search volume, but their competition is relatively small and their costs are low. In SEO and search engine marketing, finding and using precise long-tail keywords is an effective strategy that can help attract more precise and valuable potential customers and increase conversion rates.