Here are a few options for the WordPress post_tag description, using slightly different approaches:

**Option 1: Simple and Direct**

* **Description:** 探索關於嗅覺的深入知識，關於你的嗅覺器官和如何運作。
* **Translation:** Explore in-depth knowledge about the sense of smell, about your olfactory organs, and how they work.
* **Suitable for:** A general, straightforward introduction.

**Option 2: Slightly More Descriptive**

* **Description:** 了解嗅覺器官的構造、功能和健康，包括鼻子、嗅球等，以及它們如何負責感知氣味。
* **Translation:** Learn about the structure, function, and health of the olfactory organs, including the nose, olfactory bulb, etc., and how they are responsible for perceiving smells.
* **Suitable for:** Better for more educational content.

**Option 3: Focusing on Content Type**

* **Description:** 查找有關嗅覺、氣味、鼻子、嗅球等相關主題的文章、指南和資源。
* **Translation:** Find articles, guides, and resources on topics related to smell, odors, the nose, olfactory bulb, etc.
* **Suitable for:** Informing users where information can be found.

**Option 4: Concise and keyword-rich**

* **Description:** 關於嗅覺器官的深入指南，包括鼻子、嗅球和感知氣味. 探索嗅覺系統, 健康和相關主題。
* **Translation:** In-depth guides about olfactory organs, including noses, olfactory bulb and smell sensation. Explore the olfactory system, health and related topic.
* **Suitable for:** More focus in SEO to help attract search engine.

**Which one to choose?**

Consider these factors when selecting:

* **Your target audience:** Is it general or science-oriented?
* **The content of your posts:** What topics do your posts under this tag cover?
* **SEO (Search Engine Optimization):** Do you want to include specific keywords?

I recommend using **Option 2** as it provides a good balance between clarity, content indication, and potential keyword inclusion. The most important thing is that the description is consistent with the type of content you plan to post under that tag.