Here are a few options for the WordPress post_tag description, designed to be concise and helpful:

**Option 1 (Focus on Clarity):**

* **Description:** 免費課程，讓你先體驗！

* **Translation:** Free lessons, let you experience them first!
* **Why it works:** Clearly states the purpose of the “試聽課” – to offer a preview.

**Option 2 (Emphasis on Benefits):**

* **Description:** 先聽再決定! 了解我們的課程內容。

* **Translation:** Listen first, then decide! Understand our course content.
* **Why it works:** Highlights the benefit of the trial – getting to know the lessons before committing.

**Option 3 (Concise and Keyword-rich):**

* **Description:** 試聽，體驗課程，免費！

* **Translation:** Trial, experience courses, free!
* **Why it works:** Uses key words related to the tag and is very brief.

**Option 4 (Direct and Informative):**

* **Description:** 想先了解課程內容？ 這裡有試聽機會！

* **Translation:** Want to understand the course content first? Here’s a chance for a trial!
* **Why it works:** Directly addresses the user’s perspective.

**Which option to choose depends on the specific context of your blog:**

* If the blog is generally very friendly and inviting, Option 1 or 4 might be best.
* If you want to be very clear and concise, Option 3 is a great choice.
* If you want to emphasize the value of the “try out”, choose Option 2.

You can enter these descriptions directly into the “Description” field when editing the post_tag in WordPress. Remember to also include the correct “Slug” for your tag (usually auto-generated but make sure it’s appropriate, using just the Chinese characters). Good luck!