Here are a few description options for the WordPress post_tag “演化” (Evolution) in Traditional Chinese, varying in formality and focus:

**Option 1: Concise & General**

* **Description:** 關於生物和概念的逐步演變。 (About the gradual evolution of organisms and concepts.)

**Option 2: Focusing on Biological Evolution**

* **Description:** 生物演化的相關文章，包括物種的起源、變異和適應。 (Articles related to biological evolution, including the origin, variation, and adaptation of species.)

**Option 3: Broader Definition (Incorporating Cultural/Technological Evolution)**

* **Description:** 探索各種事物，例如生物、文化、技術和想法的演變過程。 (Exploring the evolutionary processes of various things, such as organisms, culture, technology, and ideas.)

**Option 4: More Formal & Scholarly**

* **Description:** 探討演化的概念、機制、以及其對生物界和人類社會的影響。 (Discussing the concept and mechanisms of evolution and its impact on the biological world and human society.)

**Option 5: Short & Sweet (Suitable for a blog with a less technical tone)**

* **Description:** 各種事物不斷發展與改變的故事。 (The story of continuous development and change of various things.)

**Key Considerations when choosing a description:**

* **Your Blog’s Content:** The description should reflect the specific topics you cover related to “演化”.
* **Target Audience:** Adjust the language to match your audience’s level of understanding.
* **SEO:** Briefly include keywords like “生物演化” (biological evolution), “文化演化”(cultural evolution), or related terms if relevant to your content.
* **WordPress Setup:** Check if your WordPress theme provides a default limit to the tag-description length.

I lean towards **Option 3** or **Option 5** if your blog’s scope isn’t solely focused on biological topics. Choose the one that best fits your overall post strategy for “演化.” Remember to translate all descriptions into Traditional Chinese!