Here are a few options for the WordPress post_tag description, catering to different use cases:

**Option 1: Simple and Descriptive (Good for general use)**

* **Description (Trad. Chinese):** 關於維基百科的相關內容，包括資訊、編輯、貢獻等。
* **Translation:** Information related to Wikipedia, including facts, editing, contributions, etc.

**Option 2: Focus on Usage (If you frequently discuss Wikipedia in your content)**

* **Description (Trad. Chinese):** 使用「維基百科」標籤的文章，介紹維基百科的不同面向，例如：歷史、爭議、使用教學，以及如何善加利用這個資料庫。
* **Translation:** Articles tagged with “Wikipedia”, exploring different facets of Wikipedia, such as its history, controversies, usage tutorials, and how to best utilize this database.

**Option 3: Emphasizing the Subject (If you want to build an archive of Wikipedia-related topics)**

* **Description (Trad. Chinese):** 所有與維基百科相關的文章都將被標記在此。 涵蓋維基百科的各個方面，從條目編輯到社群討論。
* **Translation:** All articles related to Wikipedia will be tagged here. Covering all aspects of Wikipedia, from editing articles to community discussions.

**Option 4: Concise and Keyword-Rich (Useful for SEO)**

* **Description (Trad. Chinese):** 維基百科, 線上百科, 資訊, 編輯, 貢獻, 數位知識.
* **Translation:** Wikipedia, Online Encyclopedia, Information, Editing, Contribution, Digital Knowledge.

**How to choose:**

* Consider **what kind of content you usually link to the tag**.
* Think about your **target audience and their level of knowledge**.
* For **SEO purposes,** a keyword-rich description can be very effective.

**How to set it in WordPress:**

1. Go to your WordPress dashboard.
2. Go to **Posts** -> **Tags**.
3. In the Tag’s edit screen (or when creating a new tag), you’ll find a “Description” field.
4. Paste the description you’ve chosen into this field.
5. **Save** the tag.

Remember to also set a good name (which is already “維基百科”, that is good) and slug (e.g., “wei-ji-bai-ke”). The slug is for URL purposes, and WordPress will attempt to generate one automatically, but you can customize it.