Here are a few options for a WordPress post_tag description for the title “線上申請” (Online Application) in Traditional Chinese, ranging in depth and SEO focus:

**Option 1: Simple and Concise**

* **Description:** 在線提交您的申請，方便快捷！ (Submit your application online, convenient and fast!)

**Option 2: Slightly More Detailed – Focusing on Convenience**

* **Description:** 透過`線上申請`, 輕鬆填寫表格、上傳文件，省時省力，立即完成申請程序！ (Through online applications, easily fill out forms, upload documents, saving time and effort, and complete the application process immediately!)

**Option 3: SEO-Focused with Keywords and Benefits**

* **Description:** `線上申請` 快速便捷，節省您的寶貴時間。您可以隨時隨地提交您的表格、申請文件。 立即探索適合您的`線上申請`服務！ (Online application is fast and convenient, saving your valuable time. You can submit your forms and application documents anytime, anywhere. Explore online application services that are right for you now!)
* **Explanation of SEO:**
* Uses the exact phrase “`線上申請`” as well as variations.
* Includes relevant keywords like “快速便捷” (fast and convenient), “時間” (time), “表格” (forms).

**Option 4: If specifically related to a service, be more specific:**

* **Description:** 立即透過`線上申請`， 申請我們的[**Specify the service e.g. 課程, 貸款, 服務]**! 簡單步驟，輕鬆完成申請，節省時間，更快獲得結果! ([**Your Service’s Name – e.g. 課程, 貸款, 服務]**!) (Apply for our [**Specify the service e.g. course, loan, service]** immediately through online application! Simple steps, easy to complete the application, save time, get results faster!)

**Considerations when choosing and editing:**

* **Audience:** Who are you writing for? The level of technical detail and language should suit your target audience.
* **Specific Content:** Does the blog post concern a specific service or topic? Adapt the description to include relevant keywords and/or mentions of those specifics.
* **Keywords:** If you have specific keywords you want to target, be sure to integrate them naturally.
* **Length:** WordPress description fields have character limits or cut-off that you can adjust based on the theme or plugin. Try to keep it concise while being descriptive.
* **Tone:** Maintain a consistent brand voice.

**How to Add This Description in WordPress:**

Usually, you won’t add a description directly to the “tag” in the classic editor as a place holder. However in other WordPress editors or plugins (like Yoast SEO etc.) you will place the description there. Check the specific settings of your WordPress theme or SEO plugin to see where to set the description. Typically, it’s found within the tag’s settings, or a tag SEO settings.