Here are a few options for descriptions for the WordPress post_tag “三歲看大” in Traditional Chinese, along with explanations:

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

> 三歲看大: 描述早期童年經歷如何預示未來發展的成語。

* **Translation:** (Three years old sees big: A proverb describing how early childhood experiences predict future development.)
* **Explanation:** This is a clean, accurate, and easily understood description. It clearly labels the tag as a proverb (成語) and explains its meaning.

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

> 三歲看大: 這個標籤用於與幼兒教育、早期發展、以及童年經歷對人格塑造的長期影響相關的文章。

* **Translation:** (Three years old sees big: This tag is used for articles related to early childhood education, early development, and the long-term impact of childhood experiences on character formation.)
* **Explanation:** This is a more practical description, specifying the *types* of articles the tag would be used for. It’s helpful for readers and editors alike.

**Option 3 (Emphasizing the prediction aspect):**

> 三歲看大: 探索幼兒時期行為模式和人格特質，如何預示著長遠的成功或挑戰。

* **Translation:** (Three years old sees big: Exploring how behavioral patterns and personality traits in early childhood predict long-term success or challenges.)
* **Explanation:** This emphasizes the predictive aspect of the saying, highlighting the connection between early experiences and later life outcomes.

**Option 4 (Focusing on cultural context):**

> 三歲看大: 傳統中國智慧，揭示幼兒教育的重要性。此標籤適用於探討童年早期發展、家庭環境及文化對個人成長的影響。

* **Translation:** (Three years old sees big: Traditional Chinese wisdom, revealing the importance of early childhood education. This tag is applicable to discussions on early childhood development, family environment, and the influence of culture on personal growth.)
* **Explanation:** This option provides a little more context, specifically mentioning the cultural roots of the saying and touching upon related impacts.

**How to choose the best description:**

* **Consider your website audience:** Is it aimed at Chinese speakers or a wider audience?
* **Focus on clarity:** The description should clearly explain what the tag is about.
* **Be concise:** Keep it brief and easy to understand.
* **Match the content:** The description should accurately reflect the articles tagged with “三歲看大”.

**Recommendation:**

I recommend either **Option 1** or **Option 2** as a good starting point, depending on the emphasis you want to place. They’re both clear and informative. Remember to choose the option that best suits your needs and the content of your blog. You can easily adjust the translation to reflect your specific audience, feel free to ask if you’d like more help tailoring it!