Here are several options for a WordPress post tag description for “成因” (chéngyīn), depending on the context and desired level of detail:

**Option 1: Simple and General**

* **Description:** 解說事件或問題的成因。 (Jiěshuō shìjiàn huò wèntí de chéngyīn. – Explaining the causes of an event or problem.)

**Option 2: More Specific, Focusing on Analysis**

* **Description:** 深入分析事件或情況的根本原因，探討其背後的形成因素。 (Shēnrù fēnxī shìjiàn huò qíngkuàng de gēnběn yuányīn, tàn tǎo qí bèihòu de xíngchéng yīnsù. – In-depth analysis of the root causes of events or situations, exploring the formative factors behind them.)

**Option 3: Suitable for Historical or Scientific Context**

* **Description:** 探究歷史事件、社會現象、或科學現象的起因和發展。 (Tànjiū lìshǐ shìjiàn, shèhuì xiànxiàng, huò kēxué xiànxiàng de qǐyīn hé fāzhǎn. – Exploring the origins and development of historical events, social phenomena, or scientific phenomena.)

**Option 4: Emphasis on Exploration**

* **Description:** 探索事件或問題的根本源頭，尋找其發展過程中的關鍵因素。 (Tānsuǒ shìjiàn huò wèntí de gēnběn yuántóu, xúnzhǎo qí fāzhǎn guòchéng zhōng de guānjiàn yīnsù. – Exploring the root origins of events or problems, searching for key factors in their development.)

**Option 5: Concise and Action-Oriented**

* **Description:** 了解事件為何發生的原因。 (Liǎojiě shìjiàn wèihé fāshēng de yuányīn. – Understanding the reasons why events happen.)

**How to Choose the Best Option:**

* **Context of Your Blog:** What kind of topics do you typically cover? History? Science? Current events?
* **Target Audience:** Who are you writing for? Beginners or experts?
* **Desired Tone:** Formal, informal, analytical, explanatory?

**Recommendation:**

I recommend **Option 2 or 3** as they are the most commonly used and suit a wide variety of content. If your content focuses on science or history specifically, Option 3 would be ideal. If you want a broader, more analytical focus, Option 2 is very suitable. Remember to also consider the description will be visible to a general audience, so be mindful of your target audience and pick the most relevant and helpful description for them.

To use these Descriptions in WordPress:

1. **Log in to your WordPress admin panel.**
2. **Go to Posts > Tags.**
3. **Find the tag “成因” (chéngyīn), or create it if it doesn’t exist.**
4. **Edit the tag.**
5. **You will see at least one box called Tag description or a field where you can insert a description. Insert your chosen Chinese description in this box.**
6. **Update the Tag.**