Here’s a WordPress post_tag description for “狗狗快樂” (Gǒu gǒu kuài lè – Happy Dog) in Traditional Chinese, optimized for SEO and context:

**Description Options:**

**Option 1 (Concise & Focused):**

> 關於愛犬的歡樂時光！分享所有狗狗快樂的瞬間，包括玩耍、美食、以及讓牠們開心的各種活動與事物。

> *Translation: About our beloved dogs’ happy times! Share all the happy moments of dogs, including play, food, and all kinds of activities and things that make them happy.*

**Option 2 (More Descriptive & Engaging):**

> “狗狗快樂” 標籤下的所有故事！探索關於狗狗的一切，從牠們無憂無慮的笑容，到牠們最愛的玩具和零食。這裡聚集了所有讓狗狗們感到快樂的內容。讓我們一起分享狗狗的喜悅，學習如何讓牠們擁有更幸福的生活吧！

> *Translation: All stories under the tag “Happy Dog”! Explore everything about dogs, from their carefree smiles to their favorite toys and treats. This is where all the content that makes dogs happy gathers. Let’s share dogs’ joy together and learn how to have them have a more joyful life!*

**Option 3 (SEO-Focused):**

> 在「狗狗快樂」的世界裡，你會找到關於狗狗的一切！探索快樂的狗狗、狗狗遊玩方式、狗狗的健康和幸福。 寻找宠物狗的快乐，狗狗的玩具，如何训练狗狗，等等。加入我們，一起讓你的狗狗每天都快樂！

> *Translation: In the world of “Happy Dog” you will find everything about dogs! Explore happy dogs, ways dogs play, dogs’ health and happiness. Find pet dog happiness, dog toys, how to train dogs, and more. Join us, and let’s make your dog happy every day!*

**Key Elements and Considerations:**

* **Target Audience:** This description is aimed at readers of Traditional Chinese.
* **Keyword Integration:** Uses the primary keyword “狗狗快樂” (Happy Dog) naturally. Option 3 uses supporting keywords like “狗狗”, “遊玩”, “健康” and “幸福”.
* **Clarity and Conciseness:** Each option is clear and easy to understand.
* **Engagement:** They invite readers to explore and share information.
* **Relevance:** The descriptions relate directly to the post_tag title, focusing on aspects of dog happiness.
* **SEO Friendliness:** Descriptions use words that are the search terms people would use when searching for information on dog-related subjects.
* **Call to Action (Subtle):** Options encourage people to read more content so they’ll click on the tag.

**Where to Use the Description:**

When you create or edit the “狗狗快樂” post_tag in your WordPress admin panel, look for a field to add a “Description.” This is where you will paste one this is suggested description.

**Recommendation:** I recommend using Option 3 if you want the best chance to perform well with SEO.

Remember to adjust the the post tag description based on the specific content of your posts and the overall tone and style of your blog.