Here are a few options for the WordPress post_tag description, catering to different needs and levels of detail, all in Traditional Chinese:

**Option 1 (Concise & Broad):**

> 想要健康減重？這裡提供有關減肥的實用知識、技巧和建議。

**(Translation: Want to lose weight healthily? Here’s practical knowledge, tips, and advice about weight loss.)**

**Option 2 (More Specific & Keyword-Rich):**

> 探索有關飲食、運動、營養、新陳代謝和健康減肥的資訊。 了解如何安全有效地燃燒脂肪，實現健康目標，打造理想體態。

**(Translation: Explore information about diet, exercise, nutrition, metabolism, and healthy weight loss. Learn how to safely and effectively burn fat, achieve health goals, and build your ideal physique.)**

**Option 3 (Focus on Resources & Guidance):**

> 彙集所有減肥相關的文章、指南和資源。從飲食計畫到運動方案，從生活習慣到心理支持，協助你在減肥旅程中獲得啟發與支持。

**(Translation: Collected resources for all weight loss related articles and guidance, including diet plans, exercise programs, daily habits, and psychological supports to support you to gain inspirations and support to help you during the journey.)**

**Option 4 (SEO Focused):**

> 尋找減肥知識，包括食物、運動、飲食習慣、燃燒脂肪、減肥食譜、健康生活方式。 所有關於如何健康減肥的資訊都在這裡！

**(Translation: Looking for weight loss information, including food, exercise, diet, fat burning, weight loss recipes, and a healthy lifestyle. All the information on how to lose weight healthily is here!)**

**Which one to choose depends on:**

* **The target audience:** Who are you trying to reach?
* **The volume of content you have:** Do you have a lot of articles or just a few?
* **Your SEO goals:** Are you trying to rank for specific keywords?
* **Overall tone of your blog:** Is it formal, informal, or something in between?

As a default, **option 2 or 4** might be the best choice as it is well rounded. Remember to also consider using alt tags for your images to optimize for SEO.

You can also add more keyword rich content in the “Description” box found in the WordPress dashboard when creating or editing the tag. For example if your site publishes many recipe articles, then add more words like “瘦身食譜” (Weight loss recipe).