Here are a few options for the description of the WordPress post tag “支付寶” in Traditional Chinese, ranging in formality and length:

**Option 1 (Concise and Clear):**

> 中國領先的移動支付平台，提供方便快捷的線上及線下支付服務。 (China’s leading mobile payment platform, offering convenient and swift online and offline payment services.)

**Option 2 (Slightly More Descriptive):**

> 關於支付寶的所有文章，涵蓋了其功能、用戶體驗、使用方法，及其在中國和全球的支付環境的影響。 (All articles related to Alipay, covering its functions, user experience, usage methods, and its impact on the payment environment in China and globally.)

**Option 3 (Emphasis on Convenience):**

> 探索使用支付寶的便捷方式，輕鬆支付各種商品和服務，體驗現代支付的魅力。 (Explore the convenient ways to use Alipay and easily pay for various goods and services, experiencing the charm of modern payment.)

**Option 4 (Targeted at Beginners or Troubleshooting):**

> 支付寶相關文章，幫助您了解如何註冊、使用、解決問題，以及充分利用支付寶的功能。 (Articles about Alipay, helping you understand how to register, use it, troubleshoot problems, and make full use of Alipay’s features.)

**Which one to choose depends on your website’s style and target audience. Consider:**

* **General Audience:** Option 1 or 2 are good all-around choices.
* **Focus on Convenience:** Option 3 emphasizes ease of use.
* **Beginner-Focused:** Option 4 caters to new users.

**To actually add this description in WordPress:**

1. **Go to your WordPress admin panel.**
2. **Navigate to Posts > Tags.**
3. **Find the “支付寶” tag (or add it if it doesn’t exist yet).**
4. **Enter the chosen description in the “Description” field.**
5. **Click “Update” to save the changes.**

Remember to choose the description that best reflects the content you’ll be tagging with “支付寶.” Good luck!