Here are a few options for a WordPress post tag description for “第一天” (Day One) in Traditional Chinese, each with a slightly different focus:

**Option 1 (General & Concise):**

> **描述:** 記錄這一天，開始的時刻。 (Description: Recording this day, the beginning moment.)

* **Focus:** Simple and direct, suitable for general use.

**Option 2 (Focus on New Beginnings):**

> **描述:** 崭新的第一步，开启旅程的一天。 (Description: A brand new first step, the day the journey begins.)

* **Focus:** Highlights the freshness and potential of a new beginning.

**Option 3 (Focus on Memory & Importance):**

> **描述:** 值得紀念的第一天，留下珍貴的回憶。 (Description: The day worth remembering, leaving behind precious memories.)

* **Focus:** Emphasizes the importance of the day and the value of the memories.

**Option 4 (Focus on Journaling/Personal Growth):**

> **描述:** 每天记录你所遇到的点滴，记录这一天的点点滴滴。（Description: Record little by little what you encountered everyday, record the details of this day.）

* **Focus:** Encourages the user to record the things they had.

**Which one to choose?**

* **Choose the one** that best reflects the *context* of the posts you’ll be tagging with “第一天.” If your blog is about travel, Option 2 might be perfect. If it’s more about personal reflection, Option 3 or 4 might be more appropriate.
* **Keep it short and sweet.** WordPress uses this text for search engine optimization and other behind-the-scenes functions.

**How to add the description in WordPress:**

1. **Go to your WordPress admin dashboard.**
2. **Go to Posts > Tags (usually under “Posts”).**
3. **Find the tag “第一天” in the list of tags.**
4. **Click “Edit” or the tag’s name.**
5. **You’ll see a field called “Description.”**
6. **Paste your chosen description into the “Description” field.**
7. **Click “Update” to save the changes.**

Remember to choose the description that best fits the tone and subject matter of your posts! Good luck with your blogging!