Here are a few options for the WordPress post tag description, in Traditional Chinese, based on the title “台灣乳酸菌” (Taiwanese Lactic Acid Bacteria):

**Option 1 (Focus on general information):**

> 與台灣相關的乳酸菌資訊，包括其來源、益處、研究，以及常見的相關產品介紹。

> *Translation: Information related to lactic acid bacteria in Taiwan, including its origin, benefits, research, and introductions to commonly related products.*

**Option 2 (Focus on specific product types, assuming related products like probiotics):**

> 專注於台灣製造的乳酸菌產品，如益生菌、優酪乳等，提供產品評測、成分解析，以及健康資訊。

> *Translation: Focused on lactic acid bacteria products made in Taiwan, such as probiotics, yogurt, etc., providing product reviews, ingredient analysis, and health information.*

**Option 3 (More concise and focused on the location):**

> 探索台灣乳酸菌，包括其優勢、應用，以及在台灣的發展現況。

> *Translation: Exploring Taiwanese lactic acid bacteria, including its strengths, applications, and current development in Taiwan.*

**Option 4 (Emphasizing health benefits):**

> 關於台灣乳酸菌的健康益處。 了解如何透過本土乳酸菌來改善腸道健康、增強免疫力。

> *Translation: About the health benefits of Taiwanese lactic acid bacteria. Learn how to improve gut health and boost immunity through local lactic acid bacteria.*

**Which Option to Choose?**

The best option depends on the content of your blog posts. Consider these factors:

* **What are your posts primarily about?** If you focus on specific products, #2 is good. If you have a general interest, #1 is fine.
* **What are you trying to highlight, health benefits or origin?** This dictates the focus of the description.
* **How specific do you want the tag to be?**

Choose the description that best reflects your blog’s content and target audience. You can also adapt and combine elements from these options to create a more tailored description. Remember to keep it concise and descriptive for optimal user experience.