Here are a few description options for the WordPress post_tag “二手車” (Used Cars) in Traditional Chinese, ranging in detail and tone:

**Option 1: Simple & Concise**

> 尋找優質的二手車？這裡有您需要的資訊。
>
> *Translation: Looking for great used cars? We have the information you need.*

**Option 2: More Descriptive**

> 探索我們關於二手車的廣泛內容，包括價格、車況、評測及保養建議。找尋您的理想二手車，享受更划算的購車體驗。
>
> *Translation: Explore our extensive content on used cars, including pricing, condition, reviews, and maintenance advice. Find your ideal used car and enjoy a more cost-effective car buying experience.*

**Option 3: Focusing on a Benefit**

> 想以更實惠的價格擁有汽車？透過我們的二手車資訊，輕鬆尋找符合您的需求，同時節省預算的車輛。
>
> *Translation: Want to own a car at a more affordable price? With our used car information, easily find a vehicle that meets your needs while saving on your budget.*

**Option 4: Adding a Call to Action**

> 想要買二手車？在這裡您可以找到最新的二手車資訊、買賣指南，以及專家給予的建議，幫助您做出明智的選擇。立刻開始您的二手車之旅！
>
> *Translation: Looking to buy a used car? Here you can find the latest used car information, buying/selling guides, and expert advice to help you make an informed choice. Start your used car journey now!*

**Option 5: Focusing on Authority & Knowledge**

> 我们为您提供关于二手车的全面深入的分析，内容涵盖车辆评估、市场动态、交易注意事项等等。 以专业知识助您买到最划算的二手车。
>
> *Translation: We provide you with a comprehensive and in-depth analysis of used cars, covering vehicle assessment, market trends, transaction considerations, and more. With professional knowledge, we help you buy the most cost-effective used car.*

**How to Use in WordPress:**

1. **Navigate to Posts > Categories** (if configuring a category) or **Posts > Tags** (if configuring a tag).
2. **Create New Tag/Category:** Fill in the name “二手車”.
3. **Add Description:** Copy and paste your chosen description into the “Description” field.
4. **Save:** Click “Add New Tag” or “Add New Category”.

Choose the description that best reflects the content of your posts related to used cars and the overall tone of your website. Consider what key information you want to highlight and what action you want your readers to take.