Here are a few options for the WordPress post_tag description for “被動收入” (Passive Income) in Traditional Chinese, ranging in tone and purpose:

**Option 1: Concise and Informative**

* **Description:** 透過投資、副業或數位資產等方式，無需積極參與也能獲得的收入來源。 (Income earned without actively working, through investments, side hustles, or digital assets.)

**Option 2: Slightly More Detailed and Benefits-Oriented**

* **Description:** 探索關於「被動收入」的各種策略和機會，了解如何透過穩健的投資和創意，讓收入自動流動，實現財務自由。 (Explore various strategies and opportunities related to “Passive Income.” Learn how to achieve financial freedom through stable investments and innovation, which generates income automatically.)

**Option 3: Focusing on Popular Strategies**

* **Description:** 深入了解股票、房地產、部落格、線上課程等，如何打造「被動收入」管道，透過不同的方式增加收入，實現夢想生活。 (Learn in-depth about creating “Passive Income” streams through stocks, real estate, blogs, online courses, etc. Increase your income with different methods and achieve your dream lifestyle.)

**Option 4: Simple & Action-Oriented (Good for encouraging exploration)**

* **Description:** 想了解如何賺取「被動收入」嗎？在這裡你可以找到相關的資訊、技巧和建議。 (Want to know how to earn “Passive Income”? Find information, tips, and advice here.)

**Key considerations when choosing:**

* **Website’s Tone and Target Audience:** Consider if your website is formal, casual, or geared towards beginners or experts.
* **SEO:** Briefly include relevant keywords within the description (e.g., “投資,” “副業,” “財務自由”).
* **Conciseness:** Keep it relatively brief, as the description might be displayed in search results or within the WordPress interface.

Choose the option that best suits your content and how you want to present “被動收入” to your audience. You can modify these suggestions to better suit your specific needs! Good luck!