Here are a few options for a description of the WordPress post tag “建立關係” in Traditional Chinese, catering to different potential uses and audiences:

**Option 1: General & Practical**

> 分享與交流關於建立人際關係、拓展社交網絡、維持良好關係的技巧與心得。無論是職場、感情或是日常生活，都涵蓋在內。

> **Translation:** Sharing and exchanging information about building relationships, expanding social networks, and maintaining good relationships. This includes topics from the workplace, romance, and daily life.

* **Good for:** A broad audience wanting information related to interpersonal skills.

**Option 2: Focus on Content & Growth**

> 探索建立關係的藝術。我們分享實用的策略、有效溝通的方式，以及維護持久關係的秘訣。一起探索人際關係的成長與挑戰。

> **Translation:** Exploring the art of building relationships. We share practical strategies, effective communication methods, and the secrets to maintaining lasting relationships. Let’s explore the growth and challenges of interpersonal relationships together.

* **Good for:** Users interested in articles that aim to give strategies.

**Option 3: Concise & Keyword-focused**

> 人際關係、社交、溝通、建立關係、人脉。

> **Translation:** Interpersonal relationships, socializing, communication, building relationships, networking.

* **Good for:** SEO (Search Engine Optimization) – good for people to find the content through search engines.

**Option 4: Emphasizing Emotion & Connection**

> 關於建立情感聯繫、加強人際關係的分享。學習如何與他人建立更深層的連結，創造溫馨、有意義的互動。

> **Translation:** Sharing about building emotional connections and strengthening interpersonal relationships. Learn how to build deeper connections with others and create warm, meaningful interactions.

* **Good for:** Content focusing on deeper emotional relationships.

**How to choose the right option:**

* **Consider your target audience:** Who are you writing for?
* **Think about your content:** What kind of articles will this tag apply to?
* **Prioritize keywords:** Use relevant keywords to help people find your content.
* **Keep it concise and clear:** The description should be easy to understand.

When adding the description to WordPress, make sure you use a suitable plugin or the built-in features depending on your theme. You might need to navigate to the tag editing page to add the description. Good luck!