Here are a few options for WordPress post tag descriptions for “二手” in Traditional Chinese, ranging in scope and tone:

**Option 1: Concise and General**

* **Description:** 涵蓋所有二手產品、物品。 (Encompasses all second-hand products and items.)
* **Keywords:** 二手, 物品, 買賣 (Second-hand, items, buying and selling)

**Option 2: Slightly More Detailed, Ideal for Retail**

* **Description:** 尋找物超所值的二手好物！在這裡你可以找到各式各樣的二手商品，包括衣物、家電、書籍等等。 (Looking for valuable second-hand treasures! Here you can find various second-hand products, including clothing, appliances, books, and more.)
* **Keywords:** 二手, 商品, 買賣, 便宜 (Second-hand, products, buying and selling, cheap/affordable)

**Option 3: Emphasizing Sustainability**

* **Description:** 支持環保，從二手開始。分享、轉售、或尋找你需要的二手商品，減少浪費，為地球盡一份心力。 (Support the environment, starting with second-hand. Share, resell, or find the second-hand items you need, reduce waste, and contribute to the Earth.)
* **Keywords:** 環保, 二手, 永續, 惜物 (Environmental protection, second-hand, sustainability, cherishing items)

**Option 4: Focusing on Value and Savings**

* **Description:** 精打細算，找到優質又划算的二手貨！在這裡，你可發現價格合理，品質良好的二手商品，滿足你的購物需求。 (Be thrifty and find high-quality, cost-effective second-hand goods! Here you can discover reasonably priced, good-quality second-hand items to meet your shopping needs.)
* **Keywords:** 二手, 划算, 便宜, 購物 (Second-hand, cost-effective, cheap/affordable, shopping)

**Key Considerations When Choosing:**

* **Target Audience:** Who are you trying to reach? (e.g., general public, specific product buyers?)
* **Content Focus:** What kind of “二手” products or discussions will be found on your blog/site?
* **Keywords:** Choose keywords that accurately reflect the content of the posts tagged with “二手.”

Choose the description that best suits the overall theme and purpose of your WordPress site. Remember to update this as the content in your site develops!