Here are a few options for the WordPress post tag description “比特幣換台幣” (Bìtèbǐ huàn táiwàn bì – Bitcoin to NTD) in Traditional Chinese, ranging in tone and purpose:

**Option 1: Concise and Informative**

> 比特幣交易指南：了解如何將您的比特幣轉換成新台幣。
>
> *Bitcoin Exchange Guide: Learn how to convert your Bitcoin into New Taiwan Dollars (NTD).*

* **Good for:** Clarity and quick understanding of the topic.

**Option 2: Slightly More Detailed**

> 比特幣兌換新台幣相關資訊，包含交易所推薦、匯率查詢、手續費比較及注意事項。
>
> *Information related to Bitcoin to New Taiwan Dollar (NTD) exchange, including recommended exchanges, exchange rate inquiries, fee comparisons, and important notes.*

* **Good for:** A broader overview of the tag’s content, implying tutorials and resources.

**Option 3: Focused on Practicality**

> 想把比特幣換成新台幣？本標籤提供您實用的資訊，幫助您安全、快速地將比特幣兌換成現金。
>
> *Want to convert your Bitcoin into New Taiwan Dollars (NTD)? This tag provides you with practical information to help you safely and quickly exchange your Bitcoin for cash.*

* **Good for:** Encouraging users and emphasizing the goal of the content’s practical application.

**Option 4: SEO-Friendly and Keyword-Rich (Use with caution depending on your SEO strategy)**

> 比特幣換台幣，交易所推薦、匯率查詢、交易教學、手續費比較、安全提領，一站式解決方案。
>
> *Bitcoin to New Taiwan Dollars (NTD), recommended exchanges, exchange rate inquiries, trading tutorials, fee comparisons, safe withdrawals, a one-stop solution.*

* **Good for:** If your SEO strategy utilizes commonly searched terms related to this topic. Be conscious to avoid “keyword stuffing”.

**Recommendation:**

I recommend **Option 2** or **Option 3** as a good balance of informative and engaging, depending on your blog’s overall tone. **Option 4** can be helpful if SEO is a high priority, but use it strategically. Remember to choose a description that best reflects the content you’ll be tagging with “比特幣換台幣”.