Here are a few options for a WordPress post_tag description for “體脂率” (Tǐzhī lǜ, Body Fat Percentage) in Traditional Chinese, ranging in formality and specificity:

**Option 1: Concise & Informative**

* **Description:** 了解您的體脂率，掌握健康指標的關鍵。 (Understand your body fat percentage and master the key to your health indicators.)

**Option 2: Slightly More Detailed**

* **Description:** 探索體脂率的重要性，以及如何測量和管理您的體脂率，以改善整體健康。 (Explore the importance of body fat percentage, and how to measure and manage your body fat percentage to improve overall health.)

**Option 3: Targeted at Beginners**

* **Description:** 體脂率是什麼？為什麼重要？在本標籤下，您將找到關於體脂率的基礎知識，以及一些實用的建議。 (What is body fat percentage? Why is it important? Under this tag, you’ll find the basics about body fat percentage, along with some practical advice.)

**Option 4: Focusing on Health & Wellness**

* **Description:** 掌握您的體脂率，是實現健康體態和整體福祉的重要步驟。探索與體脂率相關的資訊，助您達成健身目標。 (Understanding your body fat percentage is a key step in achieving a healthy physique and overall well-being. Explore information related to body fat percentage to help you achieve your fitness goals.)

**Option 5: More Technical (if your content is more scientific)**

* **Description:** 深入剖析體脂率的定義、計算方法、多種測量方法，以及它與健康的關係。 (Delve into the definition, calculation methods, various measurement methods, and the relationship of body fat percentage to health.)

**How to Choose:**

* **Consider your audience:** Who are you writing for? Are they beginners, fitness enthusiasts, or medical professionals?
* **Think about your content:** What kind of articles will you be tagging with “體脂率”? The description should reflect the type of content you’ll be creating.
* **Word count:** WordPress allows for descriptions of varying lengths. Choose an option that feels right for your needs.

I recommend using **Option 2 or 4** as they are a good balance of information and user-friendliness. You can easily adapt them to fit your specific content style. Remember to add the description in the WordPress tag edit screen.