Here are a few options for a WordPress post tag description for “開篇” (open the topic/beginning) in Traditional Chinese, varying in length and focus:

**Option 1: Concise & Direct**

> **Description:** 用於標記文章的開頭或起始部分，引導讀者進入文章主題。 (Used to mark the beginning or opening part of an article, guiding the reader into the article’s topic.)

**Option 2: Slightly More Detailed**

> **Description:** 標示文章的開篇，涵蓋文章的引言、概述或起始點。 (Indicates the opening of the article, encompassing the introduction, overview, or starting point.)

**Option 3: Emphasis on Content Focus**

> **Description:** 標記所有文章的起始部分，通常包含文章的主題介紹、背景資訊，或是作者的觀點。 (Marks the starting section of all articles, typically containing the introduction of the article’s topic, background information, or the author’s viewpoints.)

**Option 4: More Reflective/ Literary**

> **Description:** 文章的開篇，猶如樂章的起始旋律，引領讀者踏入文字的旅程，揭開故事的序幕。 (The opening of the article, like the initial melody of a musical movement, leading the reader into the journey of words, unveiling the opening of the story.)

**Key considerations for choosing the best option:**

* **Your website’s overall tone:** Is it formal or informal? Choose a description that matches your website’s style.
* **Target audience:** Who are you writing for? A more technical audience might prefer a more direct description.
* **How you use the tag:** If “開篇” consistently refers to introductions, then a description that clarifies that purpose is helpful.

I recommend using **Option 2 or 3** as they provide good context. You can also adjust these based on your specific needs. Remember to save the description in the “Description” field within the post tag’s editing screen in WordPress.