Here are a few options for the description, ranging from concise to slightly more detailed, along with explanations:

**Option 1 (Concise):**

> 贍養費計算，涉及離婚或分居後對經濟支援的評估和計算。了解計算公式、影響因素和法律規定。

* **Explanation:** This is a short, clear, and to-the-point description. It highlights the core subject and includes key terms for better searchability.

**Option 2 (More Detailed – Focus on Practicality):**

> 想知道贍養費怎麼算？ 我們將深入探討贍養費的計算方法，包括如何估算收入差異、生活開支，以及法律對贍養費的要求。 學習如何保護您的權益，並了解計算過程中的常見問題。

* **Explanation:** This option is more engaging and aims to answer the reader’s immediate question. It emphasizes practicality (how to calculate) and includes benefits (protecting rights). It also subtly hints at potential solutions (e.g., addressing common problems).

**Option 3 (Emphasis on Divorce Context):**

> 贍養費计算在離婚案件中至關重要。本文章詳解贍養费的计算方式、考慮因素和相關法律條款。 了解如何確保公平的贍養費分配。

* **Explanation:** This description focuses on the context of divorce, which is a likely trigger for a search on this topic. It also emphasizes “fair” allocation, which is a keyword for users of this topic.

**Option 4 (Focus on Legal Aspects):**

> 贍養費計算：了解台灣法律對贍養費的規定 – 如何計算、法律依據、以及法院判決的考量因素。 包含相關案例分析，幫助您了解贍養費的法律框架。

* **Explanation:** This option highlights the legal aspects of alimony calculations and is geared toward a more informed audience or those seeking legal clarity. It mentions Taiwan specifically if relevant to your target audience. The inclusion of case studies adds value.

**Choosing the best option:**

The best description depends on your overall content and target audience. Consider:

* **What your post covers:** Does it provide a general overview, detailed calculations, legal analyses, or something else?
* **Who you are writing for:** Are they legal professionals, people going through a divorce, or the general public?
* **Keywords:** How important is targeting specific keywords for search engine optimization (SEO)?

Remember to choose the description that most accurately reflects your content and meets the needs of your audience. You can also customize any of these descriptions to be even better suited to your specific needs. Good luck!