Here are a few options for the WordPress post_tag description, tailored to different tones and levels of detail, all in Traditional Chinese:

**Option 1: Concise & General**

* **描述:** 維生素B群：維持能量代謝，促進健康。

* **(Translation):** Vitamin B Complex: Maintains energy metabolism, promotes health.
* **(Tone):** Brief, informative, suitable for a general audience.

**Option 2: Slightly More Descriptive**

* **描述:** 維生素B群是一組重要的水溶性維生素，參與多種身體機能。了解B群對能量產生、神經系統和新陳代謝的重要性。

* **(Translation):** Vitamin B Complex is a group of important water-soluble vitamins that participate in many bodily functions. Learn about the importance of B vitamins for energy production, the nervous system, and metabolism.
* **(Tone):** More detailed, hints at the post’s content.

**Option 3: Focused on Benefits**

* **描述:** 想增強活力、改善精神狀態嗎？維生素B群是你的好幫手！了解B群如何幫助改善疲勞、支持健康的神經功能，和維持良好新陳代謝。

* **(Translation):** Want to boost vitality and improve your mental state? Vitamin B Complex is your good helper! Learn how B vitamins help improve fatigue, support healthy nerve function, and maintain good metabolism.
* **(Tone):** Emphasizes benefits, targets readers interested in health and wellness.

**Option 4: Technical (If appropriate for your niche)**

* **描述:** 探索維生素B群的不同種類 (B1, B2, B3, B5, B6, B7, B9, B12) 及其在細胞代謝、DNA合成、及能量生成中的作用。 了解缺乏症狀與補充建議。

* **(Translation):** Explore the different types of Vitamin B complex (B1, B2, B3, B5, B6, B7, B9, B12) and their roles in cellular metabolism, DNA synthesis, and energy production. Understand deficiency symptoms and supplementation recommendations.
* **(Tone):** More formal and technical, requires more specialized knowledge. Suitable if your blog delves into scientific details.

**Choosing the best option:**

* Consider your target audience. Are they general health enthusiasts or more knowledgeable individuals?
* Think about the content of your post. Does the description accurately reflect what you are discussing?
* Keep it relatively concise without being too vague. Aim for clarity and informative content.
* Use keywords relevant to search.

I recommend using **Option 2 or 3** as a good starting point because they are balanced, easy to understand, and they provide some general background of the topic. Remember to tailor it to your specific blog’s voice and the content of your post.