Here’s a description for a WordPress post tag titled “成犬” (chéng quǎn – Adult Dog) in Traditional Chinese:

**Description:**

標記用於標示關於成年犬隻的文章、照片或其他內容。涵蓋已成熟、生理發育完成的犬隻，以及牠們的飼養、護理、行為、健康及相關議題。

**(Translation & Breakdown):**

* **標記用於標示關於成年犬隻的文章、照片或其他內容：** (Biāojì yòngyú biāoshì guānyú chéngnián quǎn zhī de wénzhāng, zhàopiàn huò qítā nèiróng.) – This tag is used to identify articles, photos, or other content relating to adult dogs.
* **涵蓋已成熟、生理發育完成的犬隻：** (Hángài yǐ chéngshú, shēnglǐ fāyù wánchéng de quǎn zhī.) – Encompassing dogs that have reached maturity and have completed their physical development.
* **以及牠們的飼養、護理、行為、健康及相關議題：** (Yǐjí tāmen de sìyǎng, hùlǐ, xíngwéi, jiànkāng jí xiāngguān yìtí.) – And their feeding, care, behavior, health, and related issues.

**Why this description works:**

* **Clear and Concise:** It quickly defines the content associated with the tag.
* **Uses Traditional Chinese accurately.**
* **Comprehensive:** It touches on various aspects of adult dogs, ensuring a broad scope for the tag’s use.
* **Keyword Rich (but naturally):** It includes relevant keywords that users might search for (“成年犬”, “飼養”, “護理”, “行為”, “健康”).
* **User-Friendly:** It’s easy to understand for anyone familiar with Traditional Chinese characters.

This description should help users understand what information is tagged with “成犬” on your WordPress site. Remember to save it in the “Description” field within the tag’s edit screen in your WordPress admin panel.