Here are a few options for a WordPress post_tag description in Traditional Chinese for the title “貓咪花椰菜”, ranging from concise to a bit more informative:

**Option 1 (Concise):**

> 以貓咪和花椰菜為主題的文章。

**(English Translation: Articles with the theme of cats and broccoli.)**

**Option 2 (Slightly more descriptive):**

> 包含可愛貓咪和綠色花椰菜等相關內容的文章標籤。

**(English Translation: Post tag for articles containing content related to cute cats and green broccoli.)**

**Option 3 (Focus on visuals):**

> 關於貓咪花椰菜照片、插畫、或是相關有趣題材的文章。

**(English Translation: Articles about cat-broccoli photos, illustrations, or related interesting themes.)**

**Option 4 (Adding a touch of humor if appropriate for your content):**

> 貓咪加上蔬菜，會擦出什麼愛的火花？這個標籤帶給你關於貓咪花椰菜的所有資訊！

**(English Translation: What sparks of love will be created when cats and vegetables meet? This tag brings you all the information about cat-broccoli!)**

**Key Considerations When Choosing:**

* **Your Content:** The best description depends on what kind of content you plan to post. If it’s mostly photos, focus on visuals. If it’s recipes, mention that.
* **Target Audience:** Is your audience mostly Chinese speakers? If so, you can be a little less formal. If your audience might include both Chinese and English speakers, a more neutral or descriptive option might work better.
* **Word Count:** Keep it relatively short, as WordPress tag descriptions typically have a character limit.

I recommend you choose the option that best reflects the type of content you’ll be tagging with “貓咪花椰菜” and that aligns with your overall blog style.