Here’s a description for the WordPress post tag “比特幣上限” in Traditional Chinese, considering SEO and clarity:

**Description Options:**

**Option 1 (Concise & Direct):**

> 了解比特幣的上限，包括其2100萬枚的總供應量，以及這對其價值和市場的影響。 探討這個稀缺性限制如何形塑比特幣的未來。

**Option 2 (Slightly More Detailed):**

> 探索「比特幣上限」這個主題，深入了解比特幣的固定供應量——2100萬比特幣。 我們將分析這個上限如何影響比特幣的投資者、挖礦者，以及整體加密貨幣市場，以及其對通脹和稀缺性的意義。

**Option 3 (Focus on Significance):**

> 比特幣的上限是其核心特徵之一，這也解釋了其成為「數位黃金」的原因。 閱讀本文探討2100萬比特幣的稀缺性，以及它如何推動比特幣價格，並影響著整體加密貨幣生態。 涵蓋比特幣上限的意義、影響和未來發展。

**Key Considerations in these Descriptions:**

* **Keywords:** Uses the title “比特幣上限” and related terms effectively.
* **Clarity:** Easy to understand for a general audience interested in Bitcoin.
* **SEO:** Includes keywords in the description for improved search ranking.
* **Value Proposition:** Briefly states what users will learn from the content.
* **Length:** These descriptions are within a reasonable length for search snippets.
* **Format:** This assumes you’ll input this directly into the “Description” field for your tag within WordPress. No need for excessive markup.

**How to Use in WordPress:**

1. **Go to Posts > Tags (or Categories if you’re using categories instead of tags).**
2. **Edit the “比特幣上限” tag.**
3. **Find the “Description” field (it might be labeled “Tag Description” or similar, depend on your Theme).**
4. **Paste one of the options above into the description box.**
5. **Update/Save the Tag.**

Choose the description that best reflects the content of your tagged posts! Good luck!