Here are a few description options for the WordPress post tag “行動購” (Xíngdòng gòu, meaning “Mobile Shopping” or “Shop On-the-Go”) in Traditional Chinese, catering to different needs:

**Option 1: Concise & Informative**

* **描述:** 即時掌握行動購物潮流！分享手機App、網頁，隨時隨地輕鬆購物的秘訣與心得。
* **(Translated):** Stay on top of the mobile shopping trend! Share our insights on apps and websites, and secrets to effortless shopping anytime, anywhere.

**Option 2: Feature-Focused (if you’re focusing on deals/products)**

* **描述:** 隨時隨地，優惠不停！精選行動購物App、限時特賣、新品推薦，讓你輕鬆搶購最新潮品。
* **(Translated):** Deals, always and everywhere! Featured mobile shopping apps, limited-time offers, and new product recommendations – making it easy to grab the latest trends.

**Option 3: User-Oriented (emphasizing user experience)**

* **描述:** 告別桌面，擁抱行動購物！分享實用的手機購物技巧、快速比價方法，讓你輕鬆享受便捷購物體驗。
* **(Translated):** Say goodbye to the desktop, embrace mobile shopping! Share useful mobile shopping tips, speedy comparison methods, and a seamless shopping experience.

**Option 4: Broad & Welcoming**

* **描述:** 沉浸在行動購物的世界！分享手機購物、App推薦、優惠資訊、購物攻略與心得，讓你輕鬆成為購物達人。
* **(Translated):** Dive into the world of mobile shopping! Sharing mobile shopping tips, app recommendations, deals, shopping strategies, and our experience, so you can easily become a shopping expert.

**Option 5: More specific (if related to a specific platform/product)**

* **(Example: If you’re often writing about Taobao mobile purchases)** **描述:** 淘宝（淘寶）行動購物攻略！分享手機淘寶App使用技巧、海淘經驗、優惠資訊與避坑指南。
* **(Translated):** Taobao (Taobao) mobile shopping strategy! Sharing tips on using the Taobao app, overseas purchasing experience, discount information, and guide to avoid pitfalls.

**Choosing the right description:**

* **Consider your blog’s content:** What kind of content do you usually post about this topic? Choose the description that best reflects that.
* **Target audience:** Who are you trying to reach? Are they beginners or experienced shoppers?
* **Keywords:** While not explicitly asked, weaving in relevant keywords (like 淘寶, app, 優惠, “shopping tips”) is good for SEO.
* **Length:** WordPress generally gives a fair amount of space, so aim for clarity and detail.

I recommend using the options that sounds the most natural and concise in Chinese. Good luck! Let me know if you’d like me to tweak any of these.