Here are a few options for a WordPress post_tag description for “話題結束” (Topic Ended) in Traditional Chinese, ranging in formality and context:

**Option 1: Concise and General**

* **Description:** 相關話題就此告一段落。 (Xiāngguān huàtí jiù cǐ gàoyī duànluò.) – This topic concludes here.

**Option 2: Slightly More Descriptive (Suitable for Blogs)**

* **Description:** 標示文章討論告一段落，或是探討主題的完結。 (Biāozhì wénzhāng tǎolùn gàoyī duànluò, huòshì tàn tǎo zhǔtí de wánjié.) – Indicates the end of the discussion in an article, or the completion of the explored topic.

**Option 3: Formal (For more professional or serious content)**

* **Description:** 用於標記討論、分析或調查的結束，表示相關議題已完成探討。 (Yòng yú biāojì tǎolùn, fēnxī huò diàochá de jiéshù, biǎoshì xiāngguān yìtí yǐ wánchéng tàntǎo.) – Used to mark the conclusion of a discussion, analysis, or investigation, signifying that the related issue has been fully explored.

**Option 4: Informal (Suitable for social media or casual blogs)**

* **Description:** 討論結束啦！看看這標籤下的文章，就可以關上這個話題的門了。（Tǎolùn jiéshù la! Kànkan zhè biāoqiān xià de wénzhāng, jiù kěyǐ guānshàng zhège huàtí de mén le.）- Discussion ended! Check out the articles under this tag, and close the topic’s door.

**Recommendation:**

The best option depends on the tone and style of your blog or website. If you are unsure, I would recommend **Option 2** as a good, neutral and informative choice that suits most scenarios.

**How to Add it to Your WordPress Post Tag:**

In WordPress, when you create a new Post Tag or edit an existing one:

1. Go to **Posts > Tags** in your WordPress admin dashboard.
2. **Either:** If creating a new tag, fill in the “Name” field with “話題結束” and the “Description” field with one of the above options.
**Or:** If editing an existing tag, click on its name, and then in the edit screen, insert the desired description.
3. Click “Update” or “Add New Tag.”