Here are a few descriptions for the WordPress post tag “開學第一堂課” in Traditional Chinese, catering to different tones and focuses:

**Option 1: Concise & Informative**

> 開學了！來看看關於「開學第一堂課」的相關資訊吧！ 包含課程規劃、準備事項等等，讓你能順利迎接新學期。

* **Translation:** School is starting! Check out information related to “First Day of School”! Including course planning, preparation items, etc., so you can successfully start the new semester.
* **Focus:** Provides a general overview of the tag’s content.

**Option 2: Encouraging & Welcoming**

> 迎接開學第一堂課！ 這裡分享了許多關於開學第一天的小撇步、感想、趣事，以及如何做好準備迎接新學期的建議，祝你有個美好開學！

* **Translation:** Welcome to the first class of the new semester! Here, we share tips, reflections, fun stories about the first day of school, and advice on how to prepare for the new semester. Wishing you a wonderful start to school!
* **Focus:** Creates a warm, encouraging tone, emphasizes community aspects.

**Option 3: Focused on Specific Content**

> 關於「開學第一堂課」的教學經驗分享、學生反思、以及課堂活動設計等內容，都在這裡！無論老師或學生，都能在這裡找到有用的資源。

* **Translation:** Teaching experience sharing related to “First Day of School”, student reflections, and classroom activity design, all here! Whether you’re a teacher or a student, you can find useful resources here.
* **Focus:** Targets specific types of content potentially within the tagged articles (teaching resources).

**Option 4: Minimalist**

> 開學第一堂課相關文章。

* **Translation:** Articles related to the first day of school.
* **Focus:** Simple and straightforward.

**Which option to choose depends on the overall theme and style of your WordPress blog.** Consider:

* **Who is your audience?** (Students, teachers, parents?)
* **What kind of articles are you tagging?** (Tips, personal stories, lesson plans?)
* **What tone do you want to convey?** (Formal, informal, encouraging?)

I would recommend Option 2 or 3 if you are starting a new blog as they are more engaging.