Here are a few options for a WordPress post_tag description, playing with different focuses:

**Option 1: Straightforward & Informative**

* **Description:** 所有关中文å—的文字和语音。(All things related to Chinese characters and their sounds.)
* **Reasoning:** This directly states what the tag encompasses, using common Chinese terminology.

**Option 2: Focus on Learning & Education**

* **Description:** 見識字母，學習中文的基礎。(Discovering characters, the foundation of learning Chinese.)
* **Reasoning:** This appeals to beginners and those interested in language learning, emphasizing the important role that characters play.

**Option 3: More General & Descriptive**

* **Description:** 关系å—節的全部有關对象，包括å—〠语和開發。(All related to characters, including words and their development.)
* **Reasoning:** For a more detailed overview of content related to characters, including information about their meaning, structure, and history.

**Option 4: Concise & Practical**

* **Description:** 中文å—符。(Chinese characters.)
* **Reasoning:** Short, sweet, and to the point, ideal if the goal is simplification for ease of use.

**Here’s how you’d typically add this in WordPress:**

1. **Login to your WordPress Admin Panel.**
2. **Navigate to Posts -> Tags.**
3. **Find “字母” in the Tags list.**
4. **Click “Edit” under the tag name (or create if not already on this list).**
5. **In the “Description” field, paste the corresponding description from above. (e.g., 見識字母，學習中文的基礎。).**
6. **Click “Update” (or depending on the version of WordPress).**

**Important Considerations:**

* **Encoding:** Make sure your WordPress installation correctly handles UTF-8 encoding to display the characters correctly.
* **Audience:** Choose the description that best suits the content you are tagging and the target audience of your blog.
* **SEO:** You could consider including some common keywords related to Chinese characters in the description to improve SEO visibility, e.g., “å­—æ¯, 天字, 指令字”.