Here are a few options for a WordPress post_tag description for “人民幣換算” (Rénmínbì huànsuàn – RMB Conversion) in Traditional Chinese, ranging in length and specificity:

**Option 1 (Short & Sweet):**

* **Description:** 人民幣 (RMB) 與其他貨幣的匯率換算。 (The exchange rate conversion for RMB with other currencies.)

**Option 2 (More Descriptive):**

* **Description:** 關於人民幣和其他貨幣的匯率換算資訊，包括即時匯率、歷史數據以及換算工具。 (Information on the exchange rate conversion for RMB and other currencies, including real-time exchange rates, historical data, and conversion tools.)

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

* **Description:** 幫助您輕鬆換算人民幣與其他貨幣，掌握最新的匯率資訊，方便您在貿易、旅行或投資時做出明智的決策。 (Helping you easily convert RMB to other currencies, stay informed about the latest exchange rate information, and make informed decisions for trade, travel, or investment.)

**Option 4 (More Specific with Keyword Emphasis):**

* **Description:** 探索人民幣 (RMB) 匯率換算，獲取最新今日匯率、匯率查詢、人民幣對美元、港幣、歐元等貨幣的轉換資訊。 掌握人民幣換算技巧，方便您進行國際交易。 (Explore RMB exchange rate conversion. Get the latest exchange rates, and information on converting RMB to USD, HKD (Hong Kong Dollars), EUR (Euros), and other currencies. Master RMB conversion techniques to facilitate international transactions.)

**Key Considerations when Choosing:**

* **Your target audience:** Who are you writing for? Are they seasoned traders or general consumers?
* **Your website content:** What kind of content is generally associated with this tag? (e.g., a currency converter, news articles, etc.)
* **SEO:** Consider relevant keywords like “匯率” (exchange rate), “換算” (conversion), “人民幣” (RMB), and other currencies you regularly discuss.

I recommend choosing the option that best reflects the purpose and content of your website. Good luck!