Okay, here are a few options for a WordPress post tag description for “水晶知識” (meaning “Crystal Knowledge” in Traditional Chinese), ranging in formality and tone. Choose the one that best suits your blog’s style:

**Option 1: Concise and Informative**

> 本標籤涵蓋所有關於水晶的資訊，包括水晶特性、種類、能量、應用及保養等等。了解更多關於水晶世界的神奇與奧秘！

> **Translation:** This tag encompasses all information about crystals, including crystal properties, types, energies, applications, and care. Learn more about the wonders and mysteries of the crystal world!

**Option 2: Slightly More Engaging**

> 探索水晶的神秘世界，從基礎知識到進階應用。在此標籤下，您將找到關於水晶的各種資訊，助您深入了解這迷人的寶石。

> **Translation:** Explore the mysterious world of crystals, from basic knowledge to advanced applications. Under this tag, you’ll find various information about crystals to help you delve deeper into these fascinating gems.

**Option 3: Focus on Benefits**

> 想了解水晶如何影響身心靈？在本標籤下，您將獲得關於水晶知識的全面解釋，幫助您更好地利用水晶的力量，改善生活。

> **Translation:** Want to understand how crystals influence your body, mind, and spirit? Under this tag, you’ll receive a comprehensive explanation of crystal knowledge, helping you better utilize the power of crystals and improve your life.

**Option 4: Simple and Direct**

> 關於水晶知識的相關文章和資料都在這裡。

> **Translation:** Articles and information related to crystal knowledge are all here.

**Option 5: Focus on Varieties (if applicable to your content)**

> 深入探索水晶世界的奧秘！ 標籤涵蓋各種水晶種類及它們的特性，例如：石英、紫水晶，以及更多！

> **Translation:** Deepen your exploration of the crystal world! This tag covers a variety of crystal types and their properties, such as: Quartz, Amethyst, and more!

**How to Use in WordPress:**

1. **Edit the Tag:** Go to your WordPress admin panel > Posts > Tags. Find the “水晶知識” tag and click “Edit”.
2. **Add the Description:** You’ll find a field labeled “Description” (or a similar name). Paste your chosen description into this field.
3. **Update:** Click the “Update” button to save your changes.

Remember to tailor the description to your specific content. If your blog focuses on crystal healing, you might emphasize that aspect. If you focus on collecting, you might focus on crystal varieties and sources, and so on. Good luck!