Okay, here are a few description options for the WordPress post tag “手機門號” (Mobile Phone Number) in Traditional Chinese, suitable for different contexts and levels of detail:

**Option 1: Concise & Functional (Best for general use)**

* **Description:** 與手機號碼相關的資訊，包括申請、查詢、更換等。 (Information related to mobile phone numbers, including application, inquiry, and replacement.)

**Option 2: A Bit More Descriptive (If you want to be more specific)**

* **Description:** 關於手機門號的各種資訊，例如：門號申請、續約、更換、SIM卡、通話費用、網路流量、以及常見問題解答等。 (Information about mobile phone numbers, such as: application, renewal, replacement, SIM card, calling fees, data usage, and answers to frequently asked questions.)

**Option 3: Focusing on Practical Application (For a tutorial or guide context)**

* **Description:** 提供關於如何申請、管理、使用手機門號的實用指南和技巧。 (Provides practical guides and tips on how to apply for, manage, and use your mobile phone number.)

**Option 4: Broad and Catch-all (If you’re unsure of the specific content)**

* **Description:** 所有與手機門號相關的內容，包括新聞、教學、技巧分享等。 (All content related to mobile phone numbers, including news, tutorials, tips, and sharing.)

**Recommendation:**

I recommend using **Option 1 or Option 2** as they are clear, concise, and provide a good overview of the topic. Choose option 2 if you want to be a little more detailed or you expect to cover a wider range of topics within the tag.

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

1. **Go to the “Posts” section in your WordPress dashboard.**
2. **Click on “Tags”.**
3. **Find the “手機門號” tag and click “Edit”.**
4. **Locate a field labeled something like “Description” or “Tag Description” (it may be a little different depending on your theme).**
5. **Paste the description you choose.**
6. **Click “Update” or “Save” to save the tag information.**

Remember to tailor the description to the actual content you will be tagging with “手機門號.” Good luck!