Here are a few options for describing the WordPress post tag “主題” (Zhǔtí), playing on different aspects and focusing on clarity and usefulness:

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

* **Description:** 討論文章的主要焦點。 (Discusses the main focus of the article.)

**Option 2 (Focus on Categorization):**

* **Description:** 用於分類文章內容的關鍵字，表明文章的核心主題。 (Keywords used to categorize article content, indicating the core topic of the article.)

**Option 3 (Highlighting Searchability):**

* **Description:** 幫助您快速找到您感興趣文章的關鍵字：文章的主要主題。 (Keywords to help you quickly find articles you’re interested in: the article’s main topic.)

**Option 4 (More Informative – if your site has a particular structure):**

* **Description:** 指出此文章所涵蓋的主要話題或領域。用於文章組織、搜尋和相關內容呈現。 (Indicates the main topic or area covered by this article. Used for article organization, search, and related content presentation.)

**Option 5 (If you want to encourage browsing by theme):**

* **Description:** 瀏覽網站時使用的標籤。點擊以查看與此主題相關的所有文章。 (Tag used for browsing the website. Click to view all articles related to this topic.)

**Key Considerations when choosing:**

* **Your audience:** Are they beginners or more familiar with WordPress & tagging?
* **Your website’s purpose:** Is it a blog, a news site, or something else?
* **How you want to use the tags:** Are they primarily for internal organization, or are you also using them for navigation and user discovery?

Choose the description that best fits your needs and helps your readers understand the purpose of your “主題” tags. Remember to keep the description brief and to the point.