Here are a few options for a WordPress post tag description for “證人” (zhèng rén – Witness) in Traditional Chinese, catering to different potential uses:

**Option 1: Simple & Direct (Good for general use)**

* **Description:** 協助調查、提供證據的關鍵人物。 (xié zhù diào chá, tí gōng zhèng jù de guān jiàn rén wù.) – A key person who assists in investigations and provides evidence.

**Option 2: Focus on the Role in Legal Context (If the blog is law-related)**

* **Description:** 法庭上、調查中提供口頭或書面證據，以支持案件的見證人。 (fǎ tíng shàng, diào chá zhōng tí gōng kǒu tóu huò shū miàn zhèng jù, yǐ zhī chí àn jiàn de jiàn zhèng rén.) – Witnesses in court or during investigations who provide oral or written evidence to support a case.

**Option 3: Emphasis on Importance and Credibility**

* **Description:** 提供證詞，目擊事件經過，對真相至關重要的人物。 (tí gōng zhèng cí, mù jī shì jiàn jīng guò, duì zhēn xiàng zhì guān zhòng yào de rén wù.) – The person providing testimony, witnessing events, and crucial to uncovering the truth.

**Option 4: More Informal & Descriptive (If the blog is less formal)**

* **Description:** 目擊事件，說出真相的人物。 (mù jī shì jiàn, shuō chū zhēn xiàng de rén wù.) – The person who witnessed the event and tells the truth.

**Which one you choose depends on the context and the topics discussed on your blog. Think about:**

* **Who is your audience?** (e.g., Lawyers, general public, students, etc.)
* **What topics does the “證人” tag relate to on your blog?** (Legal cases, news reports, personal stories, etc.)

**How to add the description in WordPress when setting up the Tag:**

1. **Go to Posts > Tags** in your WordPress dashboard.
2. If you’re creating a new tag, fill in the “Name” as “證人”.
3. In the “Description” field, paste the text of your chosen description (from above).
4. Click “Add New Tag” (or “Update Tag” if you’re editing an existing one).