Here are a few description options for a WordPress `post_tag` with the title “載客數” (Passenger Capacity) in Traditional Chinese, catering to different needs:

**Option 1: Concise and Informative (Best for general use)**

* **Description:** 描述文章中關於交通工具、設施或其他事物所能容納的乘客數量。
* **(Translation):** Describes the number of passengers that transportation, facilities, or other things discussed in the articles can accommodate.

**Option 2: More Detailed and Contextual**

* **Description:** 標籤用於索引包含關於載客能力的文章，例如公共交通工具、飛機、遊輪、電梯等容納乘客的數量。 用於分析交通流量、規劃及相關議題。
* **(Translation):** This tag is used to index articles that contain information about passenger capacity, such as the number of passengers that public transportation, airplanes, cruise ships, elevators, etc. can accommodate. Useful for analyzing traffic flow, planning, and related issues.

**Option 3: Focus on a Specific Discipline (If relevant to your blog)**

* **Description:** 在運輸、旅遊或建築工程中，此標籤描述乘客數量，包含容納限制、安全規範和可行性分析。
* **(Translation):** In transportation, tourism, or construction engineering, this tag describes the number of passengers, including capacity limits, safety regulations, and feasibility analysis.

**Option 4: Simple and Universal (Good for beginners)**

* **Description:** 關於載客量或是乘客數量的文章標籤。
* **(Translation):** A tag for articles about passenger capacity or the number of passengers.

**Key Considerations and Customization:**

* **Context:** Choose the description that best fits the focus and subject matter of your blog. Does it concentrate on transportation, tourism, research, or something else?
* **Audience:** Consider the technical knowledge of your readers. Are you targeting experts or a general audience?
* **SEO:** While not the primary purpose of tag descriptions, a brief mention of relevant keywords (like “passenger capacity,” “number of passengers,” “seats”) can subtly improve search engine optimization. The examples already address this naturally.
* **Brevity:** Keep the description concise and easy to understand. WordPress might truncate longer descriptions.
* **Keywords and Synonyms:** Consider adding synonyms or related terms to the description. For example, you could also incorporate terms like “乘客容量”, “座位數量” (number of seats), or “容納人數” (number of people accommodated). You can tailor this based on the subject matter of your posts.

To enter the description in WordPress:

1. Go the **Tags** section (often found under “Posts” in the admin menu)
2. Click on the tag with the title “載客數”.
3. In the tag edit screen, look for the “Description” field. Paste your chosen description there.
4. Click “Update”.

Remember to save after adding the description. Good luck!