Here are a few description options for your WordPress post tag “有限時” (Limited Time) in Traditional Chinese, ranging from simple to more descriptive, designed to be used in the tag meta description or context clues:

**Option 1: Simple & Concise (Best for a quick, broad understanding)**

* **Description:** 只在指定時間內有效。 (Only valid for a limited time.)

**Option 2: Slightly More Informative (Good for clarity)**

* **Description:** 標示限時優惠、活動或優惠。表示此內容或商品只在特定時間範圍內有效。 (Indicates limited-time offers, promotions, or discounts. Signifies that this content or product is only valid within a specific time frame.)

**Option 3: Emphasizing Urgency (Good for driving action)**

* **Description:** 限時搶購、機會難得！錯過不再！ (Limited-time offer, a rare opportunity! Don’t miss out!)

**Option 4: Focusing on the Content (Good if specific to your posts)**

* **Description:** 關於限時優惠、促銷活動、以及期間限定內容的標籤。 (Tags related to limited-time offers, promotions, and limited-time content.)

**Option 5: Very Descriptive (For clarity within a specific context)**

* **Description:** 表示文章、產品或活動僅在特定時間內有效。這包括限時優惠、特別活動、或擁有時間限制的內容。請注意有效期限，別錯過任何好機會！ (Indicates that articles, products, or events are only valid for a specific time. This includes limited-time offers, special events, or content with time restrictions. Please pay attention to the expiration date and don’t miss any good opportunities!)

**How to Choose the Best Description:**

* **Context:** Which description is right for you will depend on your target audience, and the types of content you create using this tag.
* **Character Limit:** Be mindful of any character limits your WordPress theme or plug-ins may enforce for tag descriptions.
* **SEO:** Consider including relevant keywords (e.g., 優惠/优惠 – promotion, 活動/活动 – event, etc.) if you are looking for SEO optimizations.
* **Clarity & Usefulness:** Aim for descriptions that are clear and provide value to someone browsing your taxonomy.

I recommend picking Option 2, Option 4, or Option 5 as they offer adequate detail without being overly verbose. Once you have the description you prefer, go into your WordPress tag settings (usually through Posts -> Tags) and edit the description for your “有限時” tag. Make sure you save the description!