Here are a few options for the WordPress post_tag description, catering to different needs:

**Option 1: Concise and Informative**

* **Title:** 事業單位 (Business Unit)
* **Description:** 包含所有與事業體相關的內容，例如公司、機構、辦事處等等。 (Includes all content related to business entities, such as companies, organizations, offices, and so on.)

**Option 2: More Detailed and SEO-friendly**

* **Title:** 事業單位 (Business Unit)
* **Description:** 本標籤用於標記與各類事業單位相關的文章、資訊、產品或服務。涵蓋範圍廣泛，從大型企業到小型工作室，均在其中。適用於搜尋相關產業資訊、公司動態、招聘啟事。 (This tag is used to mark articles, information, products, or services related to all types of business units. The scope is broad, covering everything from large corporations to small studios. Suitable for searching industry information, company news, and job postings.)

**Option 3: Focusing on Content Scope**

* **Title:** 事業單位 (Business Unit)
* **Description:** 涵蓋有關事業體的各個面向。包括營運規劃、市場策略、財務管理、人事管理、企業文化等。 (Covers all aspects of business entities, including operation planning, market strategy, financial management, human resource management, and corporate culture.)

**Option 4: Brief and Simple**

* **Title:** 事業單位 (Business Unit)
* **Description:** 關於公司、機構及事業體的信息。 (Information about companies, organizations, and business entities.)

**Key considerations when choosing the best option:**

* **Your target audience:** Who are you writing for? Are they general readers or industry experts?
* **Your content:** What kind of content will be tagged with “事業單位”?
* **SEO:** Do you want to optimize the description for search engines? Consider adding keywords like “公司” (company), “企業” (enterprise), “機構” (organization) if relevant to your content.
* **Clarity and brevity:** The description should be easy to understand and concise.

I suggest choosing Option 2 or 3 if you want a good balance of information and optimization, or Option 1 for a simple description. Remember to also use relevant keywords in the post itself to optimize your content further.