Here are a few options for descriptions for the WordPress post_tag “T細胞” in Traditional Chinese, catering to different levels of detail and focus:

**Option 1: Concise & Clear**

* **Description:** 人體免疫系統中的重要細胞，負責辨識和攻擊感染細胞和異常細胞。 (Rén tǐ miǎn yì xì tǒng zhōng de zhòng yào xì bāo, fù zé biàn shí hé gōng jī gǎn rǎn xì bāo hé yì cháng xì bāo.)
* **Translation:** Important cells in the human immune system, responsible for recognizing and attacking infected cells and abnormal cells.
* **Explanation:** This option is straightforward and provides a brief but accurate definition.

**Option 2: More Detailed**

* **Description:** T 細胞，是身體免疫系統中的關鍵淋巴細胞。它們在對抗感染、癌細胞以及其他威脅方面發揮重要作用。包括輔助 T 細胞、細胞毒性 T 細胞等不同功能類型。 (T xì bāo, shì shēn tǐ miǎn yì xì tǒng zhōng de guān jiàn lín bā xì bāo. Tā men zài duì kàng gǎn rǎn, ái xì bāo yǐ jí qí tā wēi xié fāng miàn fā huī zhòng yào zuò yòng. Bāo kuò fǔ zhù T xì bāo, xì bāo dú xìng T xì bāo děng bù tóng gōng néng lèi xíng.)
* **Translation:** T cells, are key lymphocytes in the body’s immune system. They play an important role in fighting infections, cancer cells, and other threats. Including different functional types such as helper T cells, cytotoxic T cells.
* **Explanation:** This option provides a more in-depth explanation, including examples of different types of T cells.

**Option 3: Focusing on Practical Implications (if applicable to your blog)**

* **Description:** 了解 T 細胞在免疫系統中的重要性，以及它們如何幫助你對抗疾病。如果你對提升免疫力有興趣，這是一個重要的關鍵詞。 (Liao jiě T xì bāo zài miǎn yì xì tǒng zhōng de zhòng yào xìng, yǐ jí tā men rú hé bāng zhù nǐ duì kàng jíbìng. Rú guǒ nǐ duì tí shēng miǎn yì lì yǒu xìng qù, zhè shì yī gè zhòng yào de guān jiàn cí.)
* **Translation:** Understand the importance of T cells in the immune system and how they help you fight diseases. If you are interested in improving your immunity, this is an important keyword.
* **Explanation:** This option is particularly suitable if your blog focuses on health and wellness, encouraging users to learn more about the topic and potentially related articles.

**How to choose the best option:**

* **Your target audience:** Consider who your blog is for. Are they medical professionals, general readers interested in health, or something else?
* **Content of your blog:** Is your blog about in-depth science, general health tips, or something else?
* **SEO goals:** Use keywords that people are likely to search for. (Consider using a keyword research tool to find related terms!)

**Where to put the description in WordPress:**

1. **Go to Posts > Tags** in your WordPress dashboard.
2. **Find the “T細胞” tag**.
3. **Click “Edit”**.
4. **Look for a field that says “Description” or “Tag Description”** (the wording may vary based on your theme or SEO plugin).
5. **Paste your chosen description into that field.**
6. **Save the changes.**

Remember to tailor the description to your specific blog content and your target audience. Good luck!