Here are a few options for the description of the WordPress post tag “開卡” (Traditional Chinese), with varying nuances, suitable for different types of content:

**Option 1: Concise and General**

* **Description:** 關於啟動新信用卡、SIM 卡等，與開卡相關的內容。 (Translation: Content related to activation of new credit cards, SIM cards, etc., and card opening in general.)
* **Suitable for:** Blog posts covering a broad range of topics related to card activation.

**Option 2: Focused on Credit Cards**

* **Description:** 專注於信用卡開卡指南、優惠活動資訊及注意事項。 (Translation: Focused on credit card activation guides, promotional information, and important notes.)
* **Suitable for:** Articles specifically about credit card promotions, steps to activate a credit card, and related advice.

**Option 3: Wider Scope, more informative**

* **Description:** 整理與開卡相關的文章，包括信用卡、SIM 卡、會員卡等的啟動流程、常見問題及解決方案。 (Translation: Collection of articles related to card activation, including activation procedures, common questions, and solutions for credit cards, SIM cards, membership cards, etc.)
* **Suitable for:** A blog covering various kinds of cards and their activation processes.

**Option 4: Short and Sweet**

* **Description:** 各式卡片的開卡教學與資訊。 (Translation: Instructions and information on activating all kinds of cards.)
* **Suitable for:** A blog featuring a wide variety of posts related to opening different types of cards.

**Which option to choose depends on the overall theme and purpose of your WordPress blog. Consider:**

* **The types of articles you primarily write.**
* **The keywords you want to target.**
* **The tone and style of your blog.**

Choose the description that best represents the content *tagged* with “開卡” on your website. Remember to use this description within your tag settings on WordPress.