Here are a few options for a description of the WordPress post tag “航空公司” (Hángkōng gōngsī – Airlines) in Traditional Chinese, catering to different needs:

**Option 1: Simple & Concise**

> 航空公司的相關文章與資訊。
>
> *Translation: Articles and information about airlines.*

* **Good for:** General use, straightforward and easy to understand.

**Option 2: More Descriptive**

> 涵蓋有關全球航空公司、航班、機票、飛行服務、忠誠計畫、事故等相關資訊之標籤。
>
> *Translation: A tag encompassing information related to global airlines, flights, tickets, flight services, loyalty programs, accidents, and more.*

* **Good for:** Providing context about the content covered by the tag.

**Option 3: Keyword Rich (for SEO)**

> 探索航空公司、機票、航班查詢、優惠、飛行體驗、行李規定、航空公司評論等相關的最新文章。獲取關於國泰航空、中華航空、長榮航空、新加坡航空等航空公司資訊。
>
> *Translation: Explore the latest articles related to airlines, tickets, flight inquiries, promotions, flight experience, baggage regulations, airline reviews, and more. Get information about Cathay Pacific, China Airlines, EVA Air, Singapore Airlines, and other airlines.*

* **Good for:** Helping search engines understand the scope of the tag and potentially improve its search ranking. (Consider this option if you’re targeting SEO).

**Option 4: Informative with a call to action:**

> 此標籤包含所有關於航空公司的文章，包含航班資訊、飛行攻略、航空公司評價、和最新優惠。 想要了解如何選擇航空公司，規劃旅行或尋找機票優惠嗎？ 點擊此標籤了解更多！
>
> *Translation: This tag contains all articles about airlines, including flight information, flight strategies, airline reviews, and the latest promotions. Want to know how to choose an airline, plan your trip, or find ticket deals? Click this tag to learn more!*
* **Good for:** Engaging the audience with this tag and encouraging interaction to get valuable content.

**How to use these descriptions:**

1. **Go to your WordPress admin panel.**
2. **Navigate to “Tags” or “Categories” (depending on where you applied the tag).**
3. **Find the “航空公司” tag.**
4. **Edit the tag.**
5. **Paste one of the descriptions into the “Description” field.**
6. **Update the tag.**

Choose the description that best suits the needs of your website and your target audience. For SEO, consider Option 3 or a modified version of it. For clarity and comprehensiveness, Option 2 or 4 are recommended.