Here are a few options for the description of a WordPress post tag titled “居留” in Traditional Chinese, each with a slightly different focus:

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

> 關於在台灣、香港或其他使用繁體中文地區的居留相關資訊，包括簽證、申請流程、法律規定等。
>
> *Translation: Information related to residency in Taiwan, Hong Kong, or other regions using Traditional Chinese, including visas, application procedures, legal regulations, and more.*

**Option 2 (Focus on Specific Countries/Regions):**

> 涵蓋台灣、香港、澳門等地居留意願、條件、申請流程、以及常見問題解答。適合對這些地區居留感興趣的讀者。
>
> *Translation: Covers the intentions, conditions, application processes, and FAQs related to residency in Taiwan, Hong Kong, and Macau. Suitable for readers interested in residing in these regions.*

**Option 3 (Benefit-Oriented):**

> 掌握有關居留的最新資訊，助您順利取得居留權，合法居住在您心愛的地區。
>
> *Translation: Stay informed about the latest information on residency, to help you successfully obtain residency and legally reside in your beloved area.*

**Option 4 (More Descriptive and SEO-Friendly):**

> 探討有關居留權、居留簽證、居留條件、永久居留、以及台灣、香港等地區的居留相關法律、政策與實用指南。 深入研究各種居留方案，協助您理解居留的各項要求，邁向夢想居留生活。
>
> *Translation: Explores aspects of residency rights, residency visas, residency requirements, permanent residency, and related laws, policies, and practical guides for regions like Taiwan and Hong Kong. Provides in-depth research into various residency programs, helping you understand the requirements and move towards your dream residence.*

**Recommendations:**

* **Choose the option that best reflects the content of your posts.** If your posts are primarily about the legal aspects, Option 1 or 4 might be best. If you focus on the different regions, Option 2 is great.
* **Consider your target audience.** Are they beginners, or are they already familiar with the terminology?
* **Keep it concise.** While Option 4 is more detailed, shorter descriptions are generally better for readability and SEO purposes.
* **Use keywords.** The descriptions use terms like “簽證 (visa)”, “申請流程 (application process)”, “法律 (laws)”, etc., which are relevant search terms.
* **Translate the descriptions into English.** This is helpful for search engine optimization (SEO) and for international audiences.

I recommend Option 4 if you want to provide the most information, or Option 1 for a quick & general introduction. Choose the one that best fits the overall tone and scope of your blog. Good luck!