Here are a few options for a description for the WordPress post_tag “非法交易” (Illegal Transactions) in Traditional Chinese, each with a slightly different focus:

**Option 1: Concise & Direct**

* **Description:** 討論涉及非法買賣、交易與活動的文章。
* **(Translation):** Articles discussing illegal buying, selling, and activities.
* **(Best for):** General usage, a straightforward explanation.

**Option 2: More Descriptive & Comprehensive**

* **Description:** 包括所有關於違反法律法規的交易行為，例如走私、販毒、洗錢、偽造等等。
* **(Translation):** Includes all transactions that violate laws and regulations, such as smuggling, drug trafficking, money laundering, forgery, and more.
* **(Best for):** If you need to be more specific about the types of illegal transactions you cover.

**Option 3: Focused on the Blog’s Ethics**

* **Description:** 本站探討有關非法交易的報導和分析，旨在揭露、警示，並促進對此類活動的理解。
* **(Translation):** This site explores reports and analysis on illegal transactions, aiming to expose, warn about, and promote understanding of such activities.
* **(Best for):** If you want to emphasize the critical/investigative nature of your blog/website.

**Option 4: Simple & Warning**

* **Description:** 提供關於非法交易的資訊，謹慎閱讀，並遵守所有相關法律。
* **(Translation):** Provides information about illegal transactions. Read with caution and comply with all relevant laws.
* **(Best for):** A quick reminder for readers and a legal disclaimer.

**Tips for Choosing the Best Description:**

* **Consider your blog’s focus:** Are you investigative? Educational? Simply informative?
* **Audience:** Tailor the language to your target audience.
* **Character Limits (if any):** WordPress might have character limits for tag descriptions.
* **Keywords (Optional):** If desired, include keywords like “走私 (smuggling),” “販毒 (drug trafficking),” etc., within the description to aid SEO. However, keep the description natural and readable.

Choose the description that best reflects the content and purpose of your WordPress posts dealing with “非法交易”. Good luck!