Here are a few description options for the WordPress post tag “犬齡” (Dog Age) in Traditional Chinese, each with a slightly different emphasis:

**Option 1 (Concise and Informative):**

> 標籤「犬齡」涵蓋了與狗狗年齡相關的所有內容，包括如何計算、不同階段的生理變化、老年犬護理等。

> *Translation:* The tag “Dog Age” encompasses all content related to dog age, including how to calculate it, physiological changes at different stages, senior dog care, and more.

**Option 2 (Focus on Content Variety):**

> 這個標籤「犬齡」將提供各種有關狗狗年齡的文章，從幼犬的成長、成犬的生活到老年犬的照護，應有盡有。

> *Translation:* This tag “Dog Age” will provide a variety of articles on dog age, from puppy growth, adult dog life, to senior dog care; covering everything.

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

> 想要了解你的狗狗的年齡嗎？ 這個「犬齡」標籤下的文章涵蓋了所有你需要的資訊，幫助你更好地照顧不同年齡階段的愛犬。

> *Translation:* Want to learn about your dog’s age? The articles under this “Dog Age” tag cover all the information you need, helping you better care for your beloved dog at different life stages.

**Option 4 (More Detailed):**

> 此標籤「犬齡」蒐集了與狗狗年齡相關的資訊，包括狗狗的年齡換算、不同年齡階段的特性、如何應對不同年齡狗狗的需求，以及常見的健康問題和護理建議。 讓你更深入了解愛犬的一生。

> *Translation:* This tag “Dog Age” collects information related to dog age, including dog age conversion, the characteristics of different age stages, how to address the needs of dogs of different ages, and common health problems and care recommendations. Allowing you to understand your beloved dog’s life in more depth.

**Which option is best?**

* **Focus on Clarity & Brevity:** Option 1 & 3 are good starting points as they are short and clear.
* **Focus on Content Depth:** Option 4 might be ideal if your blog dives deeper on the topic.
* **Consider Your Audience:** Tailor the tone (e.g., more friendly vs. formal) to your blog’s style.

Remember to choose the description that best reflects the content you plan to include under the “犬齡” tag and fits the overall tone of your blog. You can also adapt any of these to be even more specific to the articles covered. Good luck!