Here’s a description you could use for the WordPress post tag “年代” in Traditional Chinese:

**Description Options (Choose the one that best suits your content):**

**Option 1 (General & Broad):**

> 標記文章內容涉及的歷史時期，例如不同世代、時代、以及特定的年份範圍。涵蓋各種年代資訊，幫助讀者快速理解文章的時空背景。
>
> *Translation:* Tags articles with content related to historical periods, such as different generations, eras, and specific year ranges. Covers various chronological information, helping readers quickly understand the temporal background of the article.

**Option 2 (Focus on Historical Context):**

> 用於標示文章的歷史背景，包括歷史事件發生的時間、特定朝代、以及重要的年代信息。 方便讀者追溯文章中的時代背景。
>
> *Translation:* Used to tag the historical context of articles, including the time of historical events, specific dynasties/eras, and important chronological information. Facilitates readers’ ability to trace the historical background of the article.

**Option 3 (Simpler & Easier to Understand):**

> 標示文章中所指的時間段，例如幾代人、某個年代或者歷史時期。
>
> *Translation:* Tags the time periods referred to in the articles, such as generations, eras, or historical periods.

**Option 4 (More Technical for Journalists/Researchers):**

> 涵蓋涉及的年份、世紀、以及時代框架。 有助於按時間順序分類文章，並簡化數據分析與比較。
>
> *Translation:* Covers the years, centuries, and temporal frameworks involved. Helpful for chronologically categorizing articles and simplifying data analysis and comparison.

**Key Considerations When Choosing:**

* **Your Website’s Content:** Is your site focused on history, current events, or general topics? Choose the description that reflects your blog’s niche.
* **Your Audience:** Consider your readers’ level of knowledge. Option 3 is the most accessible.
* **SEO (Search Engine Optimization):** While the description primarily serves internal organization, you might subtly include keywords related to common search terms (“歷史,” “時代,” “年份”). The exact keywords really depends on your specific niche.

**How to Add This in WordPress:**

1. **Go to your WordPress Dashboard.**
2. **Navigate to Posts > Tags.**
3. **Find the “年代” tag.**
4. **Click “Quick Edit” or “Edit” (depending on the WordPress Theme and configuration.)**
5. **Paste the description into the “Description” field.**
6. **Click “Update Tag”.**