Here are a few options for a description of the WordPress post_tag “預期壽命 (Expected Lifespan)” in Traditional Chinese, ranging from concise to more elaborate:

**Option 1: Concise and Direct**

* **描述：** 關於生命預期的標籤. (Description: Tags about life expectancy.)

**Option 2: Slightly More Informative**

* **描述：** 內容涵蓋生物和非生物的預期壽命. (Description: Content covering the expected lifespan of living and non-living things.)

**Option 3: Focusing on Applications (if the content is about something specific)**

* **描述：** 探討不同產品、設備或生物體的預期壽命，提供相關資訊和分析。 (Description: Examining the expected lifespan of various products, equipment, or organisms, providing relevant information and analysis.)

**Option 4: Emphasizing Context (more appropriate if the blog discusses it in a particular context)**

* **描述：** 深入探討與「預期壽命」相關的主題, 例如健康、科技、產品壽命等。 (Description: Exploring topics related to “Expected Lifespan,” such as health, technology, product life, etc.)

**Option 5: A More Conversational Approach**

* **描述：** 想知道東西能用多久嗎？ 這個標籤收集了關於「預期壽命」的資訊，讓你對各種事物的使用時間有更清楚的概念！ (Description: Want to know how long things last? This tag gathers information about “Expected Lifespan,” giving you a clearer understanding of the lifespan of various objects!)

**How to choose the best option:**

* **The overall tone of your blog:** Is it technical, friendly, academic?
* **The content of your posts tagged with “預期壽命”:** are they specific to a particular field, or a broad overview?
* **Character Count:** WordPress might have limitations.

Choose the description that best reflects the topics covered by the posts using the tag “預期壽命”. Good luck! And remember to also provide “slug” (a URL-friendly description) to your tag (e.g., `yu-qi-shou-ming`).