Here are a few options for a WordPress post_tag description for “流通” (Liútōng) in Traditional Chinese, with slightly different focuses depending on your needs:

**Option 1: General & Concise**

* **Traditional Chinese:** 產品、資訊等在市場上的流動和分佈。
* **English Translation:** The flow and distribution of products, information, etc. in the market.
* **Description Focus:** This highlights the fundamental meaning of “circulation” in a broad context.

**Option 2: Emphasizing Business & Economics**

* **Traditional Chinese:** 經濟活動中，商品、服務和資金的交換和流通。涵蓋供應鏈、分銷、零售等環節。
* **English Translation:** The exchange and circulation of goods, services, and funds in economic activity. Includes supply chains, distribution, retail, and more.
* **Description Focus:** This is excellent if your site is geared towards business, economics, or commerce topics.

**Option 3: Focusing on a Specific Aspect (Example: Information)**

* **Traditional Chinese:** 資料、訊息等的傳遞與共享，例如網路上内容的傳播，媒體的報導。
* **English Translation:** The transmission and sharing of data, information, etc., such as the spread of content online and media reporting.
* **Description Focus:** Adapt this to the *specific type* of “circulation” most relevant to your website’s content.

**Option 4: More Technical/Formal**

* **Traditional Chinese:** 貨物、資金、資訊或其他資源在不同實體之間轉移的過程，涉及生產、運輸、儲存和銷售。
* **English Translation:** The process of transferring goods, funds, information, or other resources between different entities, involving production, transportation, storage, and sales.
* **Description Focus:** Consider this if your audience is technically inclined.

**To choose the *best* option, consider:**

* **Your Website’s Target Audience:** Who are you writing for? What level of detail do they need?
* **The Content Associated with This Tag:** What topics will use this tag?
* **The Overall Tone of Your Website:** Is it formal, informal, academic, etc.?

**How to Add the Description in WordPress:**

1. **Go to Posts -> Tags** from your WordPress dashboard sidebar.
2. **Find the “流通” Tag:** either by clicking on it to edit, or by selecting it from the list.
3. **Find the Description Field:** the exact placement may vary slightly depending on your WordPress theme, but it’s usually below the tag text field. Look for a field labeled: **”Description”** or “Tag Description”. If you don’t see the field, you might need to enable it in the “Screen Options” at the top right of the edit screen.
4. **Enter the Description:** Copy and paste your chosen description into the field.
5. **Update the Tag** Click “update”, “save” or the relevant save button to finalize the change.

I recommend using the Option 2 or a customized version of option 3 suited to your website. Good luck!