Here are a few options for the WordPress post_tag description, depending on the nuance you want to convey:

**Option 1: Concise and Informative**

* **Description (for WordPress):** 研究微小生物，如細菌、病毒和真菌，探討它們的結構、功能和與環境的相互作用。 (Yánjiū wēixiǎo shēngwù, rú xìjūn, bìngdú hé zhēnjūn, tàn tǎo tāmen de jiegòu, gōngnéng hé yǔ huánjìng de xiānghù zuòyòng.)
* **Translation:** Studies of microscopic organisms, such as bacteria, viruses, and fungi, exploring their structure, function, and interactions with the environment.
* **Good for:** General information, broad coverage of the topic.

**Option 2: Focus on Relevance to the Blog**

* **Description (for WordPress):** 分享關於微生物學知識、最新研究進展，及在健康、環境和科技方面的應用。 (Fēnxiǎng guānyú wēishēngwùxué zhīshì, zuìxīn yánjiū jìnzhǎn, jí zài jiànkāng, huánjìng hé kējì fāngmiàn de yìngyòng.)
* **Translation:** Sharing knowledge of microbiology, the latest research developments, and its applications in health, environment, and technology.
* **Good for:** Tailoring the description to the specific topics discussed on the blog.

**Option 3: Simple and Approachable**

* **Description (for WordPress):** 了解微生物世界！ 探索細菌、病毒和更多微小生命形式。 (Liǎojiě wēishēngwù shìjiè! Tànsuǒ xìjūn, bìngdú hé gèng duō wēixiǎo shēngmìng xíngshì.)
* **Translation:** Learn about the world of microbes! Explore bacteria, viruses, and other tiny life forms.
* **Good for:** Attracting readers who might be new to the subject.

**Option 4: More Detailed with Key Aspects**

* **Description (for WordPress):** 研究微觀生物，從細菌到病毒，以及它們在生物學、醫學、食品科學和環境科學中的作用。包括關於微生物的結構、新陳代謝、遺傳、生物多樣性和相關疾病的討論。 (Yánjiū wēiguān shēngwù, cóng xìjūn dào bìngdú, yǐjí tāmen zài shēngwùxué, yīxué, shípǐn kēxué hé huánjìng kēxué zhōng de zuòyòng. Bāokuò guānyú wēishēngwù de jiégòu, xīnchéndài, yíchuán, shēngwù duōyàngxìng hé xiāngguān jíbìng de tǎolùn.)
* **Translation:** Studies of microscopic organisms, from bacteria to viruses, and their roles in biology, medicine, food science, and environmental science. Includes discussions on the structure, metabolism, genetics, biodiversity, and related diseases of microorganisms.
* **Good for:** Giving a more comprehensive overview for users interested in a deeper understanding

**How to Use in WordPress:**

1. **Go to the WordPress admin panel.**
2. **Navigate to “Posts” -> “Tags”.** If you don’t see this directly, look under “Posts.”
3. **Find the “微生物學” tag** in the list (or add a new one).
4. **Click “Edit” next to the tag.**
5. **Look for the “Description” field.** Enter the description you chose from above.
6. **Click “Update”.**

Choose the description that best suits your blog’s tone and the kind of content you’ll be tagging with “微生物學.” I recommend Option 2 or 4 if details are needed.