Here are a few options for a WordPress post_tag description for the title “境外” (Jìngwài) in Traditional Chinese, varying in length and focus:

**Option 1: Concise and Informative**

* **Description:** 泛指「海外」或「國外」地區。涵蓋所有位於本國境外的地點、事物或活動。
* **Translation:** Refers broadly to “overseas” or “foreign” regions. Encompasses all locations, things, or activities that are outside the borders of this country.

**Option 2: Slightly More Detailed, Highlighting Different Contexts**

* **Description:** 標記涉及中國大陸以外地區的內容，例如旅遊、商業、文化交流、政治事件、生活體驗等。包括但不限於香港、澳門、台灣，以及世界各國。
* **Translation:** Tags content related to regions outside mainland China, such as travel, business, cultural exchanges, political events, and lifestyle experiences. Includes, but is not limited to, Hong Kong, Macau, Taiwan, and countries around the world.

**Option 3: Focusing on a Specific Context (assuming a travel blog)**

* **Description:** 探索「境外」世界的冒險與發現！分享海外旅行的攻略、美食、文化體驗和有趣見聞。
* **Translation:** Exploring the adventures and discoveries of the “overseas” world! Sharing travel guides, delicious food, cultural experiences, and interesting observations.

**Option 4: Generic and Broad (and suitable for different situations)**

* **Description:** 與中國大陸以外地區相關的所有內容。包括但不限於國際新聞、商業活動、文化交流及旅遊見聞。
* **Translation:** All content related to regions outside Mainland China. Including, but not limited to, international news, business activities, cultural exchanges and travel experiences.

**Key Considerations When Choosing:**

* **Your website’s content:** The description should align with the topics you typically cover.
* **Your target audience:** Consider their level of understanding and interests.
* **Keyword optimization:** While not the *primary* focus of a tag description, you can subtly incorporate relevant keywords to improve search engine ranking. (e.g., consider adding “海外旅遊” (overseas travel) if your site focuses on travel).
* **Brevity:** WordPress tag descriptions are often displayed, so keep them concise and clear.

When adding this to your WordPress tag, be sure to enter this text in the “Description” field of the tag settings. Good luck!