Here are a few options for a WordPress post_tag description for “線上名片” (Online Business Card) in Traditional Chinese, catering to different needs and focuses:

**Option 1: Concise and Informative (General Use)**

> 方便分享、互動、聯繫！瞭解如何製作、分享、管理你的**線上名片**，讓你在數位世界建立專業形象，輕鬆拓展人脈。 (Easy to share, interact, and connect! Learn how to create, share, and manage your **online business card** so you can establish a professional image in the digital world and easily expand your network.)

**Option 2: Focusing on Benefits (Highlighting Value)**

> 告別紙本名片，擁抱更環保、高效的**線上名片**。 隨時隨地更新資訊，一鍵分享，讓你保持最新狀態，提升業務效率，不錯過任何商機! (Say goodbye to paper business cards and embrace a more eco-friendly and efficient **online business card**. Update your information anytime, anywhere, and share with a single click, keeping you up-to-date, improving business efficiency, and missing no opportunities!)

**Option 3: Keyword-Rich (For SEO)**

> 分享你的聯絡方式，建立專業形象，展現個人品牌！ 相關文章包含**線上名片**製作、範例、設計、分享教學、優缺點比較，以及如何優化你的數位網路名片，提升曝光度，擴大聯繫圈。 (Share your contact information and build a professional image to showcase your personal brand! Related articles include **online business card** creation, examples, design, sharing tutorials, pros and cons comparison, and how to optimize your digital network business card to increase exposure and expand your network.)

**Option 4: Simple and Catchy**

> 你的數位身份證！ 即刻探索**線上名片**的世界，建立更棒的聯繫體驗。 (Your digital ID! Explore the world of **online business cards** and create a better connection experience.)

**Key Considerations When Choosing:**

* **Target Audience:** Who are you trying to reach?
* **Post Content:** Does the description align with the content of your posts?
* **SEO:** Include relevant keywords to help search engines understand your content.
* **Brevity:** Keep it concise for readability.

Choose the description that best suits your specific needs and objectives. Remember to adjust the formatting within WordPress to ensure it displays correctly.