Here are a few descriptions for the WordPress post tag “免費試用” (Free Trial) in Traditional Chinese, varying in tone and focus:

**Option 1: Brief and Clear**

* **Description:** 試用我們的服務或產品，無需任何費用。
* **(English Translation):** Try our service or product without any charge.
* **Tone:** Straightforward and informative.

**Option 2: Emphasizing Benefits**

* **Description:** 體驗完整功能，無任何風險，立即開始您的 免費試用！
* **(English Translation):** Experience the full features, with no risk! Start your free trial now!
* **Tone:** Promotes excitement and highlights the advantages.

**Option 3: Focusing on Convenience**

* **Description:** 輕鬆體驗，無需付款，讓您無負擔地了解我們的產品或服務。
* **(English Translation):** Effortlessly experience our product or service without payment, allowing you to understand it without any burden.
* **Tone:** Stresses ease of use and trial without commitment

**Option 4: Suitable for an e-commerce environment:**

* **Description:** 免費試用 – 探索產品，無需付款，立即免費開始試用，體驗更多可能！
* **(English Translation):** Free Trial – Explore our products without paying. Try it now for free and experience more possibilities!
* **Tone:** Focuses on the opportunity to test and try the products.

**Key Considerations When Choosing:**

* **Your Target Audience:** Who are you trying to reach? A more casual tone might work for general consumers, while a more formal tone might be better for businesses.
* **Your Product/Service:** What are you offering? A description that emphasizes features or benefits might be more effective depending on your product.
* **Overall Branding:** Does the description fit your overall brand voice and style?

You can adapt any of these to best suit your specific needs. I always recommend choosing one that’s **concise, clear, and accurately describes what the “免費試用” (Free Trial) tag represents.**