Here are a few options for describing a WordPress post tag with the title “交換” (Exchange/Swap) in Traditional Chinese, catering to different levels of detail and formality:

**Option 1: Concise & Functional**

* **Description:** 與其他事物互動，例如：物品、想法或訊息之交換。 (Interacting with other things, such as the exchange of items, ideas, or information.)
* **Explanation:** This is a simple and direct definition, clearly stating the core meaning of “exchange.” It’s good for general posts.

**Option 2: Slightly More Descriptive**

* **Description:** 分享、互換或轉讓的概念。 包括物品、資源、訊息、想法等等。 (The concept of sharing, swapping, or transferring. Including items, resources, information, ideas, and more.)
* **Explanation:** This expands on the core meaning, offering a broader application, suitable for more diverse posts using related concepts.

**Option 3: Use Case Focused (e.g., if your site facilitates exchange)**

* **Description:** 透過本標籤查看與交換相關的文章，涉及買賣、以物易物、互助合作等。 (Browse articles related to exchange through this tag, including buying and selling, bartering, mutual cooperation, and more.)
* **Explanation:** This directs users based on what your site might focus on related to exchange. It clearly indicates the tag’s relevance.

**Option 4: More Abstract for deeper philosophical application**

* **Description:** 反映事物、概念或能量在不同實體間轉移的過程。 (Reflecting the process of transferring things, concepts, or energy between different entities.)
* **Explanation:** This option is better if your site covers abstract and Philosophical concepts related to exchange.

**Key Considerations when choosing:**

* **Your Website’s Content:** What subjects and types of content typically use “交換”?
* **Target Audience:** Who are you writing for and what level of understanding/detail do they need?
* **Length:** WordPress tag descriptions do not have a strict character limitation, but concise descriptions are generally preferred.

**How to Add a Description (in WordPress):**

1. **Log in to your WordPress Admin.**
2. **Go to Posts > Tags (or Categories, depending on your setup).**
3. **Find the tag “交換” in the list.**
4. **Click “Edit”.**
5. **Look for the “Description” field.**
6. **Paste your chosen description into the field.**
7. **Click “Update”.**