Here are a few options for the description of a WordPress post_tag with the title “交大” (Jiaoda), in Traditional Chinese, along with explanations to help you choose the best fit:

**Option 1 (Focus on General Information):**

* **Description:** 交大相關內容彙集，包含各所交大校園資訊、新聞動態、學術研究等。
* **Translation:** A collection of content related to Jiaoda, including campus information, news updates, academic research, etc., from all Jiaoda universities.
* **Explanation:** This option is broad and useful if your blog covers topics related to multiple Jiaoda universities (e.g., Shanghai Jiao Tong University, Xi’an Jiaotong University, etc.). It uses formal language and is clear in its purpose.

**Option 2 (Focus on a Specific University, e.g., Shanghai Jiao Tong University):**

* **Description:** 上海交通大學 (SJTU) 相關資訊，包括校園生活、學術動態、校友活動、歷史沿革等。
* **Translation:** Information related to Shanghai Jiao Tong University (SJTU), including campus life, academic updates, alumni activities, history, and more.
* **Explanation:** This is ideal if your blog focuses on posts specifically about Shanghai Jiao Tong University. It’s more targeted and includes the English abbreviation for clarity. Remember to replace 上海交通大學 (Shanghai Jiao Tong University) with the correct university if it’s a different institution.

**Option 3 (Concise and Direct):**

* **Description:** 關於交大的文章。
* **Translation:** Articles about Jiaoda.
* **Explanation:** This is short, simple, and effective. Good if you just need a quick description to get the general idea across. It’s a good default option.

**Option 4 (Focus on Specific Subject Matter):**

* **Description:** 聚焦於交大校園內熱門科技、創新發明、產學合作等相關內容。
* **Translation:** Focusing on popular technologies, innovative inventions, industry-academia collaborations, and related content within all Jiaoda campuses.
* **Explanation:** This would be a good choice if your blog primarily covers topics related to tech, innovation, and research within the Jiaoda universities and its many campuses.

**Option 5 (For a broader audience and more inclusive approach):**

* **Description:** 集結各大交大及其校友的文章與資訊，涵蓋學術、生活、與校園點滴。
* **Translation:** A collection of articles and information about Jiaoda universities and their alumni, covering academics, campus life, and anecdotes.
* **Explanation:** This option acknowledges all branches of Jiaoda. It’s suitable for blog which focuses on varied topics surrounding the Jiaoda system.

**How to Choose the Best Option:**

* **Consider your Content:** What types of posts do you publish most often tagged with “交大”?
* **Targeted Audience:** Are you speaking to a broad readership or a more specific audience (students, alumni, researchers)?
* **Specificity vs. Generality:** Do you want to cast a wide net or focus on particular aspects of “交大”?

When adding this to your WordPress tag, make sure to paste one of these descriptions into the “Description” field. You can usually find this field in the “Tags” section of your WordPress admin, when editing a tag.