Here are a few options for a WordPress post tag description, targeting slightly different audiences:

**Option 1: Concise and General**

* **Description:** 涵盖传统华人重要的三个节日：春节、端午节和中秋节。 (Covers the three key traditional Chinese festivals: Spring Festival, Dragon Boat Festival, and Mid-Autumn Festival.)
* **Rationale:** This is a straightforward and universally understandable explanation of what “三節” signifies. It’s suitable for a general audience.

**Option 2: More Detailed (Consider your audience – if they are already familiar, skip this)**

* **Description:** 指的是华人文化中最重要的三个传统佳节，分别为：春节（农历新年）、端午节（五月初五）、中秋节（八月十五）。 探讨这三个节日习俗、美食、历史和庆祝方式。 (Refers to the three most important traditional festivals in Chinese culture: Spring Festival (Lunar New Year), Dragon Boat Festival (fifth day of the fifth lunar month), and Mid-Autumn Festival (fifteenth day of the eighth lunar month). Discusses customs, cuisine, history, and celebrations associated with these three festivals.)
* **Rationale:** This option is more informative. It helps the user understand what each festival represents and what topic might be addressed in the labeled posts.

**Option 3: Emphasis on cultural significance (Use if you have a blog with cultural content)**

* **Description:** 象征着中华文化的璀璨与传承的三大节日：春节、端午节和中秋节。 本标签下的内容，深入探讨这些节日的历史、意义、风俗，以及它们对华人身份认同的影响。 (Symbolizing the brilliance and continuation of Chinese culture – the three major festivals: Spring Festival, Dragon Boat Festival, Mid-Autumn Festival. Content under this tag delves into the history, significance, customs, and impact of these festivals on Chinese identity.)
* **Rationale:** This option focuses on the cultural richness and importance of the festivals. It is appropriate if you are running a blog with cultural content.

**Option 4: Simple tag line:**

* **Description:** 中国三大传统节日。 (Three traditional Chinese festivals.)
* **Rationale:** This is the most concise and provides an easy-to-understand description of what the tag includes, making it suitable for all situations.

**Which option to choose:**

* Consider your audience and the overall tone of your blog.
* If your blog is aimed at a wider audience, choose Option 1 or 4.
* If the blog focuses on in-depth cultural content, Option 2 or 3 would be appropriate.

When adding the descriptions to your WordPress post tag, remember to navigate to **Tags** -> **Edit** (on the tag you want to edit) menu and insert the description into the `Description` box.