Here are a few options for the description of the WordPress post tag “一週瘦多少” (“How much weight can you lose in a week?”) in Traditional Chinese, catering to different potential users and tones:

**Option 1: Concise and Practical**

> 想知道一週可以瘦多少嗎？ 這裡分享減重秘訣、飲食建議和運動技巧，幫助您達成瘦身目標！ (Want to know how much weight you can lose in a week? Here we share weight loss secrets, dietary suggestions, and exercise techniques to help you achieve your slimming goals!)

* **Target Audience:** General audience interested in weight loss.
* **Tone:** Direct and informative.
* **Key Elements:** Highlights the key topics covered in the posts.

**Option 2: Slightly More Engaging**

> 想瘦身？ 想知道一週能瘦多少嗎？在這標籤下，探索有效、健康的減重方式！我們提供實用的建議，包括飲食控制、運動計畫和生活習慣調整，幫助您實現快速、安全的減重目標！ (Want to slim down? Want to know how much weight you can lose in a week? Under this tag, explore effective and healthy weight loss methods! We provide practical suggestions, including diet control, exercise plans, and lifestyle adjustments to help you achieve your fast and safe weight loss goals!)

* **Target Audience:** People who have a clearer goal in mind, namely slimming.
* **Tone:** Slightly more engaged and promotional.
* **Key Elements:** Focuses on the desired result (quick and safe weight loss).

**Option 3: Focus on Health and Wellness**

> 健康瘦身，一週能瘦多少？ 透過正確的飲食與運動，找到適合您的減重方式。我們提供科學的建議，幫助您安全有效達成瘦身目標，並養成健康的生活習慣。(Healthy weight loss, how much can you lose in a week? Through proper diet and exercise, find a weight loss method that suits you. We provide scientific advice to help you safely and effectively achieve your slimming goals and develop healthy lifestyle habits.)

* **Target Audience:** People who prioritize health and wellness during their weight loss journey.
* **Tone:** Empathetic and emphasizes the long-term benefits.
* **Key Elements:** Highlights the combination of diet and exercise, safe and effective approach, and the importance of healthy habits.

**Option 4: (Shorter, for internal tagging if the goal is purely search)**

> 一週減重計畫，瘦身技巧指南 (One-week weight loss plan, slimming tips guide)

* **Target Audience:** This assumes the audience already has an idea of the content related to the tag.
* **Tone:** Straight to the point, good for labeling to improve searchability.
* **Key Elements:** Focuses on the primary keyword of the tag: weight loss within the week.

**Which option to choose depends on:**

* **Your target audience:** Who are you trying to reach?
* **The tone of your website:** Is your website friendly, informative, serious, etc.?
* **The type of content you are posting:** Are you focusing on quick fixes or long-term habits?

Choose the description that best reflects the overall message and style of your WordPress blog. Remember to also use relevant keywords in your descriptions to improve search engine optimization (SEO).