Here are a few options for a WordPress post_tag description for “AI應用” (AI Application) in Traditional Chinese, ranging in length and detail:

**Option 1: Short & Sweet (Most common and versatile):**

> 人工智慧的實際應用，涵蓋多個領域。 (The practical applications of Artificial Intelligence, spanning various fields.)

**Option 2: Slightly More Descriptive:**

> 探索人工智慧技術如何應用於不同行業和情境，提升效率、改善體驗。 (Explore how Artificial Intelligence technology is applied in different industries and scenarios to increase efficiency and improve the experience.)

**Option 3: Focused on Specific Use Cases (If you want to target specific content):**

> 集中討論AI在各行各業的應用案例，包括醫療、金融、教育、零售等。 (Focus on application cases of AI in various industries, including healthcare, finance, education, retail, etc.)

**Option 4: Future-Oriented:**

> 展望人工智慧在未來發展的潛力，探討其如何改變我們的生活和工作。 (Looking ahead to the potential of Artificial Intelligence in the future, exploring how it will change our lives and work.)

**Which one to choose depends on:**

* **Your primary content focus:** Do you mostly discuss specific industries, general concepts, or future possibilities?
* **Target audience:** Are they tech-savvy or are they more general readers?
* **Overall blog style:** Keep it consistent with your other tag descriptions.

**Key considerations:**

* **Conciseness:** Short descriptions are generally better for tags.
* **Keywords:** They should naturally help search engines understand what the tag is about (e.g., 人工智慧, AI, 應用, etc.).
* **Relevance:** The description should accurately reflect the type of content tagged with “AI應用.”

I recommend option 1 or 2 as a good starting point, but feel free to adapt them to your specific needs.