Here’s a description for the WordPress post tag “天數” (Tiānshù), suitable for a Traditional Chinese audience:

**Description:**

> 涵蓋與「天數」相關的所有內容。 此標籤用於標記涉及日子、日期、時間長度，以及與曆法、時間週期、占卜等相關的文章和話題。 例如：特定事件的天數、假期天數、歷史事件的年數、或者是與傳統文化中「天數」概念相關的文章。 探索時光的流逝，掌握日子的奧秘！

**Translation and Breakdown of Choices:**

* **”涵蓋與「天數」相關的所有內容。”** (Hángài yǔ “Tiānshù” xiāngguān de suǒyǒu nèiróng.): This is the direct and comprehensive opening. It asserts that the tag covers all content related to “Tiānshù.”
* **”此標籤用於標記涉及日子、日期、時間長度，以及與曆法、時間週期、占卜等相關的文章和話題。”** (Cǐ biāoqiān yòngyú biāojì shèjí rìzi, rìqí, shíjiān chángdù, yǐjí yǔ lìfǎ, shíjiān zhōuqí, zhānbǔ děng xiāngguān de wénzhāng hé huàtí.): This spells out the specific topics the tag applies to. These keywords are relevant and helpful for users.
* 日子 (rìzi) – days
* 日期 (rìqí) – dates
* 時間長度(shíjiān chángdù) – duration, time length
* 曆法 (lìfǎ) – calendar
* 時間週期 (shíjiān zhōuqí) – time cycles
* 占卜 (zhānbǔ) – divination (as “天數” is sometimes considered in a more philosophical and spiritual context through this term.)
* **”例如：特定事件的天數、假期天數、歷史事件的年數、或者是與傳統文化中「天數」概念相關的文章。”** (Lìrú: tèdìng shìjiàn de tiānshù, jiàqī tiānshù, lìshǐ shìjiàn de niánshù, huòzhě shì yǔ chuántǒng wénhuà zhōng “Tiānshù” gài niàn xiāngguān de wénzhāng.) – Example uses of this topic to help the user understand the scope.
* 特定事件的天數 (tèdìng shìjiàn de tiānshù) – The number of days of a specific event.
* 假期天數 (jiàqī tiānshù) – Number of days of a holiday.
* 歷史事件的年數 (lìshǐ shìjiàn de niánshù) – Number of years of Historical events.
* 傳統文化 (chuántǒng wénhuà) – traditional culture; brings in the important connection.
* **”探索時光的流逝，掌握日子的奧秘！”** (Tànsuǒ sh guāng de liúshì, zhǎngwò rìzi de àomì!) or: “揭開時間奧秘，細味天數之美！” (Jiēkāi shíjiān àomì, xìwèi tiānshù zhī měi!) or similar – Concluding statement to make the tag more appealing to the user and encourage exploration of time-related topics.

This description is comprehensive, informative, and engaging, providing a clear understanding of what articles and content are tagged with “天數.” It also uses traditional Chinese phrasing and vocabulary to resonate with the target audience. You can adapt the final sentence to better fit the specific tone of your website.