Here are a few options for a WordPress post_tag description in Traditional Chinese, catering to different levels of detail and focus:

**Option 1: Concise & Informative**

* **Title (WordPress Post Tag):** 30歲收入
* **Description:** 討論30歲左右人士的收入概況、理財規劃與職涯發展。 (Discusses the income situation, financial planning, and career development of people around the age of 30.)

**Option 2: Benefit-Oriented**

* **Title (WordPress Post Tag):** 30歲收入
* **Description:** 了解30歲收入的平均水平，掌握提升收入與財務自由的策略。 包括理財建議、職涯規劃、加薪秘訣等。 (Understand the average income level at age 30, and master strategies to increase income and gain financial freedom. Includes financial advice, career planning, and tips for salary increases.)

**Option 3: Keyword-Rich**

* **Title (WordPress Post Tag):** 30歲收入
* **Description:** 關注30歲人士的收入議題，包含薪資、理財、投資、儲蓄、職涯發展、加薪、副業等相關資訊。 幫助您在30歲階段實現財務目標。 (Focused on income issues for people around age 30, including salary, financial management, investments, savings, career development, salary raises, side hustles, and related information. Helps you achieve your financial goals in your 30s.)

**Option 4: Slightly More Detailed (for SEO)**

* **Title (WordPress Post Tag):** 30歲收入
* **Description:** 在30歲這個人生階段，收入變得至關重要。 這裡彙整有關30歲收入的數據分析、理財規劃建議、職涯發展技巧、加薪策略、投資建議，以及如何在競爭激烈的市場中提升收入潛力的資訊。 (The income issue is critical at the 30-year-old stage of life. This tag compiles data analysis on 30-year-old incomes, financial planning advice, career development skills, salary increase strategies, investment recommendations, and information on how to increase income potential in a competitive market.)

**Key Considerations When Choosing:**

* **Target Audience:** Who is your blog targeting? (Young professionals? Those with financial concerns?)
* **Keywords:** Which keywords are most important for this tag? (e.g. “理財” (financial management), “加薪” (salary increase), “投資” (investment).)
* **SEO (Search Engine Optimization):** Include relevant keywords to improve search engine visibility.
* **Your Brand’s Tone:** Choose a description that fits your blog’s overall style (formal, informal, helpful, etc.).

Remember to choose the description that best aligns with your specific goals for the WordPress post_tag!