Here are a few options for the WordPress post_tag description, along with explanations:

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

* **Description:** 快速換算薪資，了解薪水與稅後收入。 (Quickly convert your salary, understand your salary and after-tax income.)

* **Explanation:** This is a short, punchy description focusing on the practical benefit of the post tag. It clarifies what users will find when browsing under this tag.

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

* **Description:** 使用薪資換算工具，計算每月薪資、年薪、稅後收入等，幫助你規劃財務。 (Use salary conversion tools to calculate monthly salary, annual salary, after-tax income, etc., to help you plan your finances.)

* **Explanation:** This option mentions what users can *do* (calculate different salary aspects) and hints at the usefulness (financial planning).

**Option 3 (Focus on Relevance and Search Optimization):**

* **Description:** 薪資換算、薪水、稅後收入、所得稅、社保、預算規劃 相關文章分類。 找到最實用的薪資計算方法，掌握你的財務。 (Salary conversion, Salary, after-tax income, income tax, social insurance, budget planning related articles classification. Find the most practical salary calculation methods, master your finances.)

* **Explanation:** This is a more SEO-friendly option. It:
* Uses the title (“薪資換算”) prominently.
* Includes related keywords that people might search for (薪水, 稅後收入, etc.).
* Reinforces the purpose of the tag.

**Option 4 (Simple and Broad):**

* **Description:** 關於薪資計算與薪資相關的資訊。 (Information related to salary calculation and salaries.)

* **Explanation:** This is very general but works as a clear and concise description.

**Choosing the Best Option:**

The best option depends on the specific content of the posts associated with the tag.

* If the posts are purely about calculating salaries and taxes, Option 1 or 2 is suitable.
* If the posts cover a broader range of topics related to salaries, taxes, financial planning, etc., Option 3 is more effective.
* If you want a simple solution, Option 4 will work.

I recommend looking at the *content* of your posts *first*, then tailoring the description to accurately reflect what’s covered. If your posts cover salary calculations, after-tax income, and maybe some basic budgeting tips, Option 2 or 3 would probably be the best choice. However, it might be better to use multiple tags. For instance, “薪資換算” (salary conversion), “稅後收入” (after-tax income), and “預算規劃” (budget planning) would likely work.

When you’re setting up the tag in WordPress, you’ll typically see a field like “Description” where you enter one of these choices.