Here are a few options for the description of the WordPress post tag “影片長度” (Film Length) in Traditional Chinese, each with a slightly different focus:

**Option 1: Concise and Clear**

* **Description:** 指示影片的長度，以便讀者快速了解。
* **(Translation):** Indicates the length of the film, allowing readers to quickly understand.
* **(Focus):** Practical information for the user.

**Option 2: Slightly More Descriptive**

* **Description:** 標示影片的長度，讓您更容易篩選或選擇觀看的影片。 包括短片、長片等。
* **(Translation):** Indicates the length of the film, making it easier for you to filter or choose what to watch. Includes shorts, features, etc.
* **(Focus):** Helps the user with filtering content, including examples.

**Option 3: Focus on Categorization**

* **Description:** 用於影片的長度分類，例如短片、中片、長片等。方便使用者查找不同長度的影片內容。
* **(Translation):** Used for categorizing film lengths, such as shorts, mid-length films, feature-length films, etc. Useful for users to find content of different lengths.
* **(Focus):** Emphasizes the organizational value of the tag.

**Option 4: Simple and Universal**

* **Description:** 標示影片的播放時間。
* **(Translation):** Indicates the runtime of the film.
* **(Focus):** The most basic and widely understood definition.

**How to Choose:**

Consider what kind of post you’re writing and what information you want to emphasize. If you’re focusing on a series of short films, option 2 or 3 might be most appropriate. If you are aiming to be universally understood, option 1 or 4 is the key here. The most important thing is to be clear and concise. You can modify these based on the specific purpose of your blog.