Here are a few options for the WordPress post_tag description, each with a slightly different focus, all in Traditional Chinese:

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

> 認識與掌握LINE功能，包括通訊、群組、貼圖、視訊通話等。

> (Understanding and mastering LINE features, including messaging, groups, stickers, video calls, etc.)

**Option 2 (Focus on Tips & Tricks):**

> LINE功能技巧、教學與實用密技分享。 讓你更有效率地使用LINE，掌握最新潮流。

> (LINE function tips, tutorials, and practical secrets. Helping you use LINE more efficiently and stay on top of trends.)

**Option 3 (Focus on Specific Features):**

> 精選LINE各式功能介紹，如LINE Today、LINE Pay、LINE購物等，讓你更全面地了解LINE。

> (Selected introductions to various LINE features, such as LINE Today, LINE Pay, LINE Shopping, etc., allowing you to understand LINE more comprehensively.)

**Option 4 (Simple & Keyword-Rich):**

> LINE, 功能, 應用, 技巧, 教學, 貼圖, 通訊, 群組, 視訊.

> (LINE, Features, Applications, Tips, Tutorials, Stickers, Messaging, Groups, Video)

**Key Considerations & Why these are good:**

* **Target Audience:** The language is clear and easily understood by a general audience in Taiwan and Hong Kong.
* **Keywords:** Includes important keywords like “LINE” and “功能” (function/feature), and common related terms.
* **Relevance:** The descriptions directly relate to the “Line功能” title and what someone might learn about it.
* **SEO (Search Engine Optimization):** Helps with search engine ranking for posts about LINE features by incorporating relevant keywords.
* **Varied Options:** Provides choices to fit the overall tone and content of your WordPress blog. Choose the one that best suits your needs.

**How to use these in WordPress:**

1. **Go to:** Posts > Tags in your WordPress dashboard.
2. **Edit the tag:** Find the “Line功能” tag in the list.
3. **Look for “Description”:** There will be a text field labeled “Description”.
4. **Paste:** Copy and paste your chosen description into the box.
5. **Update:** Save or Update your tag.

Good luck with your blog!