Okay, here are a few descriptions for the WordPress post tag “使用時間” (Usage Time) in Traditional Chinese, catering to different nuances:

**Option 1 (Most straightforward and clear):**

* **Description:** 標示文章內容所提及的使用時間，例如應用程式的使用時長、產品的使用年限等。 (This indicates the usage time referred to in the content, such as the duration of use of an application or the lifespan of a product.)

**Option 2 (Focus on applications and services):**

* **Description:** 標籤，用於標示文章中關於應用程式、服務、或產品的實際使用時間資訊。 (Tag used for indicating information about the actual usage time of applications, services, or products in an article.)

**Option 3 (Emphasis on different types of media):**

* **Description:** 標示文章中關於使用時間的各種資訊，包括但不限於應用程式的使用時長、產品的使用年限、甚至是影音作品的觀看時間等等。(Indicates various information about usage time in a post, including but not limited to application usage duration, product lifespan, and even video viewing time, etc.)

**Option 4 (More concise):**

* **Description:** 文章中提及的使用時間總覽。 (Overview of usage time mentioned in the post.)

**Choosing the Best Option:**

* The best option depends on the specific content of your blog and the type of information you’ll be tagging.
* If you want the description to be as widely applicable as possible, Option 3 offers the most comprehensive coverage.
* Option 1 is the broadest and most commonly used. It’s a safe choice.
* If your focus is on apps and services, Option 2 is the most relevant.
* If you are struggling to keep your description concise, Option 4 has you covered.

**Important Considerations for WordPress:**

* **Character Limit:** WordPress allows a significant length for tag descriptions but it is still good practice to be clear and concise.
* **Keywords:** If appropriate, consider incorporating related keywords in your description (e.g., 應用程式, 產品, 服務) for better searchability within your site.

Remember to add the description within the WordPress tag editing area. Good luck!