Here are a few options for the description of the WordPress post tag “什麼是比特幣”, translated into Traditional Chinese, catering to different levels of detail and audience:

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

> 探索比特幣的基本概念及運作原理。了解何謂加密貨幣，以及它如何改變我們的金融體系。

**Translation:** Explore the basic concepts and operational principles of Bitcoin. Learn what cryptocurrency is and how it’s changing our financial systems.

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

> 深入淺出，了解比特幣(Bitcoin)。這個熱門的加密貨幣不僅僅是數字錢包。本標籤將帶領你了解其歷史、技術基礎、優缺點以及相關新聞。

**Translation:** An easy-to-understand introduction to Bitcoin. This popular cryptocurrency is more than just a digital wallet. This tag will guide you through its history, technical foundations, advantages, disadvantages, and related news.

**Option 3 (Focusing on Benefits for Beginners):**

> 想了解比特幣嗎？本標籤為初學者準備，解釋比特幣是什麼，以及它如何運作。了解比特幣的潛在益處，以及如何安全地參與這個新興的加密貨幣世界。

**Translation:** Want to understand Bitcoin? This tag is designed for beginners, explaining what Bitcoin is and how it works. Learn about the potential benefits of Bitcoin and how to safely participate in this emerging cryptocurrency world.

**Option 4 (Short & Sweet):**

> 立即了解比特幣： 加密貨幣的入門指南。

**Translation:** Learn about Bitcoin now: A beginner’s guide to cryptocurrency.

**Choosing the Best Option:**

The best option depends on the overall tone and target audience of your website.

* **Option 1 & 4:** Best for a more general audience or if your website mainly provides short, snappy content.
* **Option 2 & 3:** More suitable if your website provides in-depth information and you want to attract a slightly more engaged audience.

When you add the description in WordPress, be sure to utilize the “Description” field which is located in the post tag edit view. You can also optionally write a related blog post to ensure that the post tag can be discoverable by users search engines.