Here are a few options for the WordPress post_tag description, in Traditional Chinese, for the title “平面設計AI”, catering to different levels of detail:

**Option 1: Simple & Concise**

* **Description:** 利用人工智慧技術於平面設計領域的應用。 (Yònglìyòng réngōng zhìhuì jìshù yú píngmiàn shèjì lǐngyù de yìngyòng.) – *Utilizing artificial intelligence technology in the field of graphic design.*

**Option 2: Slightly More Detailed**

* **Description:** 探索平面設計中人工智慧的發展與應用，涵蓋自動生成設計、圖像處理、創意發想等面向。 (Tànsuō píngmiàn shèjì zhōng réngōng zhìhuì de fāzhǎn yǔ yìngyòng, hángài zìdòng shēngchéng shèjì, túxiàng chǔlǐ, chuàngyì fāxiǎng děng miànxiàng.) – *Exploring the development and application of artificial intelligence in graphic design, covering aspects such as automated design generation, image processing, and creative ideation.*

**Option 3: Focus on Benefits**

* **Description:** 了解如何透過平面設計AI提升效率、節省時間，並激發更多創意，讓你的設計作品更具競爭力。 (Liǎojiě rúhé tōngguò píngmiàn shèjì AI tíshēng xiàolǜ, jiéshěng shíjiān, bìng jīfā gèngduō chuàngyì, ràng nǐ de shèjì zuòpǐn gèng jù jìngzhēnglì.) – *Learn how to improve efficiency, save time, and spark more creativity through graphic design AI, making your design work more competitive.*

**Option 4: Targeting Specific Users**

* **Description:** 為設計師、行銷人員及對平面設計AI有興趣的人士，提供最新的技術趨勢、實用工具和案例分析。 (Wèi shèjìshī, hángxiāo rényuán jí duì píngmiàn shèjì AI yǒu xìngqù de rénshì, tígōng zuìxīn de jìshù qūshì, shíyòng gōngjù hé ànlì fēnxī.) – *Providing the latest technology trends, practical tools, and case studies for designers, marketers, and those interested in graphic design AI.*

**Key Considerations when making your choice:**

* **Target Audience:** Who are you writing for? Are they beginners or experienced designers? This will influence the complexity of the description.
* **Content of the Posts:** What kinds of posts will be tagged with this tag? The description should accurately reflect the topics that utilize this tag.
* **SEO (Search Engine Optimization):** Use relevant keywords such as “平面設計” (graphic design), “AI”, “人工智慧” (artificial intelligence), and relevant tasks (e.g., “自動生成設計” (automated design generation)). Choose the description that uses the most relevant and helpful terms for your audience.

I recommend selecting the option that best matches your content and your target audience’s level of understanding. Good luck!