Here are a few options for descriptions for the WordPress tag “B群” (B-complex Vitamins) in Traditional Chinese, ranging in formality and specificity:

**Option 1: Concise & Common**

* **Description (Traditional Chinese):** 維生素B群 (Wéishēngsù B Qún) – 包含多種重要的維生素，有助於能量代謝和神經系統健康。

* **Translation (English):** B-complex Vitamins – Includes several important vitamins, assisting with energy metabolism and nervous system health.

**Option 2: Slightly More Detailed**

* **Description (Traditional Chinese):** B群維生素，包括B1、B2、B3、B5、B6、B7、B9 及 B12，對維持身體機能至關重要。 幫助將食物轉化為能量，支持神經系統功能。

* **Translation (English):** B-complex Vitamins, including B1, B2, B3, B5, B6, B7, B9, and B12, essential for maintaining bodily functions. Helps convert food into energy, supporting nervous system function.

**Option 3: Focusing on Benefits**

* **Description (Traditional Chinese):** 瞭解維生素B群，提供能量、改善心情、促進神經健康。 包含維生素B1至B12，助你活力充沛！

* **Translation (English):** Learn about B-complex vitamins, providing energy, improving mood, and promoting nerve health. Includes vitamins B1 to B12, helping you stay energized!

**Option 4: A little more technical**

* **Description (Traditional Chinese):** B群維生素 (B-complex vitamins) 是水溶性維生素，在能量代謝，肌肉功能，以及紅血球生成中起著重要作用。 常見於健康食品及肉類、魚類中。

* **Translation (English):** B-complex vitamins are water-soluble vitamins that play an important role in energy metabolism, muscle function, and red blood cell production. Commonly found in healthy foods and meat, and fish.

**Choosing the Best Option:**

* **For a general audience:** Option 1 or 3 are good. They are clear and easy to understand.
* **For someone looking specifically for more information:** Option 2 might be suitable.
* **If you have a more health-oriented site:** Option 4 provides a more technical approach.

Remember to choose the description that best fits the tone and purpose of your blog. You can also customize these to focus on other specifics for the posts.