Here’s a description for the WordPress post_tag “actuarial science” in Traditional Chinese, designed to be concise and informative for readers:

**Option 1 (Concise & Direct):**

> **精算學 (jīngsuàn xué)**
>
> 專門研究風險管理、保險和金融領域的學科。包含概率論、統計學、金融學等知識，用於評估和管理金融風險。
>
> *English Translation (for admin purposes):*
> Actuarial science. A field studying risk management in insurance and finance. Involves probability theory, statistics, and finance to assess and manage financial risks.

**Option 2 (Slightly More Detail):**

> **精算學 (jīngsuàn xué)**
>
> 探討風險於保險、退休金、金融等方面之量化與管理。精算師運用數學及統計方法，計算保險費率、準備金，並對整體風險進行評估，是金融領域中重要的專業。
>
> *English Translation (for admin purposes):*
> Actuarial science. The quantitative and management of risks in insurance, pensions, and finance. Actuaries use mathematics and statistics to calculate premiums, reserves, and evaluate overall risks, making it a crucial profession in finance.

**Explanation of Choices and Key Elements:**

* **标题 (Title):** “精算學” (Jīngsuàn Xué) – This is the direct and standard translation of “Actuarial Science” in Traditional Chinese.
* **Keywords:** The descriptions include key terms like “風險管理 (risk management)”, “保險 (insurance)”, “金融 (finance)”, “概率論 (probability theory)”, “統計學 (statistics)”, and “精算師 (actuary)”, which are highly relevant to the topic. These are crucial for SEO.
* **Conciseness:** Both options are relatively brief, which is helpful for a tag description. You don’t want it to be overwhelming.
* **Accuracy:** The descriptions accurately convey the core concepts of actuarial science.
* **Relevance:** It’s directly relevant to the title and the expected content of posts tagged with “精算學”.
* **English Translation (Admin Use):** The inclusion of an English translation is extremely helpful for the site administrators and anyone managing the content. This way, non-Chinese speaking team members can easily understand the purpose of the tag.

**How to use this in WordPress:**

1. **Go to Posts > Tags** in your WordPress dashboard.
2. **Add New Tag** (or edit an existing tag if you already have one).
3. **Tag Name:** “精算學” (This is the title).
4. **Description:** Copy and paste one of the descriptions above into the description field.
5. **Update** or **Add New Tag**.

When you tag a post with “精算學”, this description will be associated with that tag. Many WordPress themes will display this description if the user clicks on the tag. Even if the theme *doesn’t* display it, the description is still important for SEO purposes, helping search engines understand the topic of the tag.