Here are a few options for a WordPress post tag description in Traditional Chinese for the title “科學知識” along with their reasoning:

**Option 1: Concise and General**

* **Description:** 關於自然世界和科學研究的知識。 (Guan yu zi ran shi jie he ke xue yan jiu de zhi shi.)
* **Translation:** Knowledge about the natural world and scientific research.
* **Reasoning:** This is the most straightforward and accessible option. It covers the core meaning of “science knowledge” and is appropriate for a broad audience.

**Option 2: Slightly More Specific**

* **Description:** 涵蓋生物學、物理學、化學等各個科學領域的知識，以及科學研究方法。 (Han gai sheng wu xue, wu li xue, hua xue deng ge ge ke xue ling yu de zhi shi, yi ji ke xue yan jiu fang fa.)
* **Translation:** Knowledge covering various scientific fields such as biology, physics, chemistry, etc., as well as scientific research methods.
* **Reasoning:** This expands on the previous option by giving examples of specific scientific disciplines. This can be helpful in clarifying the scope of the tag and possibly hinting at what can be found under it.

**Option 3: Focusing on Practical Application**

* **Description:** 學習科學原理，理解科學應用，探索科技創新與發展。 (Xue xi ke xue yuan li, li jie ke xue ying yong, tan suo ke ji chuang xin yu fa zhan.)
* **Translation:** Learning scientific principles, understanding scientific applications, and exploring technological innovation and development.
* **Reasoning:** This emphasizes the use and development of “science knowledge.” This might be helpful if the blog or website focuses more on the applications of science or on the impact of scientific discovery.

**Option 4: Tagged-Based with Keywords**

* **Description:** 一切與科學、實驗、研究、科技、知識相關的文章。 (Yi qie yu ke xue, shi yan, yan jiu, ke ji, zhi shi xiang guan de wen zhang.)
* **Translation:** Articles related to science, experiments, research, technology, and knowledge.
* **Reasoning:** Focusing on keywords helps users find content that precisely meets their needs, It can also improve the search engine optimization (SEO) of your blog.

**How to choose the best description:**

* **Consider your audience:** Who are you writing for? Are they experts, students, or a general audience?
* **Think about the content under the tag:** What kind of posts will be tagged with “科學知識”?
* **Keep it concise and easy to understand.**

I recommend using option 1 or 2 as a general starting point. Then modify based on the website’s contents.