Here are a few options for the description of the WordPress post tag “感謝信” (Thank-you Letter) in Traditional Chinese, catering to different levels of detail and purpose:

**Option 1: Short and Sweet (Suitable for general use)**

> 感謝信 – 用於標記和分類感謝、感激之情的信件類別。

* English Translation: “Thank-you Letter – Used for marking and categorizing letters of thanks and gratitude.”

**Option 2: Slightly More Descriptive (Provides context):**

> 感謝信 – 包含表達感激之情的信件，例如對幫助過的人、公司或機構的感謝。 常用於社交、商業或個人用途。

* English Translation: “Thank-you Letter – Includes letters expressing gratitude, such as thanks to those who have helped individuals, companies, or organizations. Commonly used for social, business, or personal purposes.”

**Option 3: Focusing on Content (for content-specific sites):**

> 感謝信 – 包含各種表達謝意的文章，可以是手寫信、電子郵件，或者其他形式的感謝內容。 涵蓋對服務、產品、支持，或其他形式幫助的感謝。

* English Translation: “Thank-you Letter – Including various articles expressing gratitude, which can be handwritten letters, emails, or other forms of thankful content. Covers thanks for services, products, support, or other forms of help.”

**Option 4: Emphasizing Purpose & Examples (for how-to or inspirational content–if the blog often uses examples):**

> 感謝信 – 存放各種感謝信範例，分享如何在不同情況下撰寫感謝信，表達感激之情，包括感謝朋友、家人、同事、公司等。提供不同信件格式與內容參考。

* English Translation: “Thank-you Letter – Category for thank-you letter examples, sharing how to write thank-you letters in different situations to express gratitude. Includes examples of thank-you letters for friends, family, colleagues, companies, etc. Provides different letter formats and content references.”

**Tips for Choosing:**

* **Consider your audience:** Who is reading your blog? Adjust the language accordingly.
* **Consider your blog’s content:** Does the description fit the type of posts you tag?
* **Keep it concise:** Shorter descriptions are generally better for tags.
* **Use keywords:** The description allows you to add keywords (like “信件”, “感激”, etc.), helping with SEO. Choose words that reflect the content.

I recommend choosing option 1 or option 2 for general purposes, but tailor it based on your specific needs! Make sure the description accurately reflects the type of content you’ll be tagging with “感謝信.”