Here’s a WordPress post tag description in Traditional Chinese for “身分證識別碼”:

**Description Options (choose the one that best suits your needs):**

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

> 用於標記與中華民國國民身分證識別碼相關的文章，包括其組成、檢查機制、用途及相關資訊。

*(Translation: Used to tag articles related to the ROC (Republic of China) National ID card’s identification code, including its composition, checking mechanisms, uses, and related information.)*

**Option 2 (More Detailed):**

> 此標籤涵蓋所有關於中華民國國民身分證識別碼的主題。包括識別碼的結構、各字符代表的含義、驗證方法、以及識別碼可能被用於的各種應用情境、或與其相關的任何數位安全議題。

*(Translation: This tag covers all topics related to the ROC National ID card’s identification code. Including the structure of the code, the meaning of each character, verification methods, and all the various applications the ID code may be used for, or any digital security issues related to it.)*

**Option 3 (Focus on Content Creation):**

> 標記關於編寫身分證識別碼相關文章的標籤；用於歸納涵蓋身分證識別碼背後邏輯、驗證方式、用途與常見問題的文章。

*(Translation: A tag for articles related to writing about National ID card identification codes; used to categorize articles covering the logic, verification methods, uses, and common issues surrounding the ID code.)*

**Why these are good:**

* **Clear and Specific:** Directly relate to the topic “身分證識別碼”.
* **Informative:** Briefly describe what the tag encompasses.
* **SEO Relevant (if desired):** Includes keywords that users would likely search for (e.g., “中華民國國民身分證”, “識別碼”).

**How to Use in WordPress:**

1. Go to your WordPress admin panel.
2. Go to “Posts” -> “Tags”.
3. Enter the tag title “身分證識別碼”.
4. In the “Description” field, paste one of the above options that you prefer.
5. Click “Add New Tag”.

Good luck!