Here are a few options for the WordPress post tag description for “線上” in Traditional Chinese, catering to different needs and levels of detail:

**Option 1: Concise & Clear**

* **Description:** 瀏覽我們關於網路、數位內容的專案。 (Browse our projects related to the internet and digital content.)

**Option 2: Slightly More Descriptive**

* **Description:** 探索與網路相關的一切，包括線上服務、數位平台、虛擬世界等。 (Explore everything related to the internet, including online services, digital platforms, virtual worlds, etc.)

**Option 3: Emphasis on Website Related Content**

* **Description:** 標籤涵蓋我們網站上所有與線上內容、數位互動相關的討論。 (This tag covers all discussions on our website related to online content and digital interactions.)

**Option 4: Broad and General**

* **Description:** 包含所有與線上、數位世界相關的文章。 (Includes all articles related to the online and digital world.)

**Option 5: Focus on the User Experience or Action**

* **Description:** 探索我們的線上資源，獲得最佳的數位體驗。 (Explore our online resources for the best digital experience.)

**Choosing the Best Option:**

* **Consider Your Website Content:** What kind of content do you typically tag with “線上”? Choose the description that best summarizes that content.
* **Target Audience:** Consider who is reading your blog: how technical are they? The level of details in the Description should match your website’s audience’s general knowledge.
* **WordPress SEO:** While the tag description helps search engines and users understanding the content of a tag, keywords are very important too.

**How to add the Description in WordPress:**

1. **In the WordPress Admin:** Go to “Posts” -> “Tags.”
2. **Locate the Tag:** Find the “線上” tag.
3. **Edit the Tag:** Click “Edit” on the tag.
4. **Add the Description:** There should be a field labeled “Description.” Paste one of the descriptions above into this field.
5. **Update the Tag:** Click “Update” or “Save” to save your changes.

Good luck!