Here are a few options for a description for the WordPress post_tag “補體素” in Traditional Chinese, catering to different levels of formality and SEO considerations:

**Option 1: Concise & Direct (Good for general use)**

> 補體素 – 了解關於「補體素」的一切，包括成分、功效、使用方法及相關資訊。 (Bǔ tǐ sù – Liǎo jiě guān yú “bǔ tǐ sù” de yī qiē, bāo kuò chéng fèn, gōng xiào, shǐ yòng fāng fǎ jí xiāng guān zī xùn.)
> *Translation: Complementary Substance – Learn everything about “Complementary Substance,” including ingredients, effects, usage methods, and related information.*

**Option 2: Keyword Rich (Good for SEO)**

> 補體素 相關資訊：探索補體素的營養價值、多種口味選擇、適合族群、以及購買地點與優惠。 讓您深入了解補充所需營養的理想選擇。 (Bǔ tǐ sù xiāng guān zī xùn: Tàn suǒ bǔ tǐ sù de yíng yǎng jià zhí, duō zhǒng kǒu wèi xuǎn zé, shì hé zú qún, yǐ jí gòu mǎi dì diǎn yǔ yōu huì. Ràng nín shēn rù liǎo jiě bǔ chōng suǒ xū yíng yǎng de lǐ xiǎng xuǎn zé.)
> *Translation: Complementary Substance Information: Explore the nutritional value of Complementary Substance, various flavor choices, suitable groups, as well as purchase locations and discounts. Gain an in-depth understanding of the ideal choice for supplementing the needed nutrition.*

**Option 3: More Descriptive (Good for a deeper context)**

> 關於補體素的詳細指南，涵蓋其在不同情況下的應用：從術後康復到日常營養補充，以及不同品牌的比較。 深入了解補體素在體育運動、老年健康、及其他生活情境中的重要性。(Guān yú bǔ tǐ sù de xiáng xì zhǐ nán, hán gài qí zài bù tóng qíng kuàng xià de yìng yòng: Cóng shù hòu kāng fù dào rì cháng yíng yǎng bǔ chōng, yǐ jí bù tóng pǐn pái de bǐ jiào. Shēn rù liǎo jiě bǔ tǐ sù zài tǐ yù yùn dòng, lǎo nián jiàn kāng, jí qí tā shēng huó qíng jǐng zhōng de zhòng yào xìng.)
> *Translation: A detailed guide to Complementary Substance, covering its applications in different situations: from post-operative recovery to daily nutritional supplementation, and comparisons of different brands. Deeply understand the importance of Complementary Substance in sports, elderly health, and other life situations.*

**Option 4: Simplest Approach (If you want to keep it short and sweet)**

> 補體素相關資訊。 (Bǔ tǐ sù xiāng guān zī xùn.)
> *Translation: Complementary Substance Related Information.*

**Key Considerations when Choosing:**

* **Context of Your Website:** What is the overall topic of your website? Choose a description that aligns with your niche.
* **Target Audience:** Who are you trying to reach? Adjust the tone and complexity accordingly.
* **SEO:** If you want to improve search engine visibility, include relevant keywords like “營養 (yíng yǎng – nutrition)”, “健康 (jiàn kāng – health)”, “成分 (chéng fèn – ingredients)”, etc. Choose Option 2 or a variation of it to maximize SEO.
* **Length:** WordPress often has character limitations for tag descriptions. Keep your description within the recommended limits.
* **Accuracy:** Ensure any claims about “補體素” are factual and accurate.

**How to use it in WordPress:**

1. **Go to your post tags section in the WordPress admin panel** (usually under “Posts” -> “Tags”).
2. **Find the “補體素” tag.**
3. **Fill in the “Description” field** with the text you choose from the options above (or a variation based on your needs).
4. **Save the changes.**

Remember to choose the description that best suits your website and goals! Good luck!