Here are a few options for the WordPress post_tag description in Traditional Chinese for “lunar calendar,” ranging from more straightforward to slightly more descriptive:

**Option 1 (Simple & Direct):**

* **Title:** 月曆 (Yuèlì – Lunar Calendar)
* **Description:** 與月亮週期相關的日期與時間系統。 (Yǔ yuèliàng zhōuqí xiāngguān de rìqí yǔ shíjiān xìtǒng. – Dates and time systems related to the lunar cycle.)

**Option 2 (Slightly more Detail):**

* **Title:** 月曆 (Yuèlì – Lunar Calendar)
* **Description:** 以月亮的週期為基礎，標示一年中日期與時間的系統，常見於農曆、傳統節日和占卜方面。 (Yǐ yuèliàng de zhōuqí wèi jīchǔ, biāoshì yī nián zhōng rìqí yǔ shíjiān de xìtǒng, chángjiàn yú nónglì, chuántǒng jiérì hé zhānbǔ fāngmiàn. – A system marking dates and times in a year based on the lunar cycle, commonly found in the Chinese Lunar Calendar, traditional festivals, and divination.)

**Option 3 ( Focusing on key aspects):**

* **Title:** 月曆 (Yuèlì – Lunar Calendar)
* **Description:** 詳細記載月亮盈虧週期，影響節慶日和農業活動的日期系統，包括農曆、伊斯蘭曆等。 (Xiángxì jìzǎi yuèliàng yíngkuī zhōuqí, yǐngxiǎng jiéqìngrì hé nóngyè huódòng de rìqí xìtǒng, bāokuò nónglì, Yīsīlán lì děng. – A detailed system that records the lunar phases and their influence on holidays and agricultural activities, including the Chinese Lunar Calendar, the Islamic Calendar, etc.)

**Explanation of Choices:**

* **月曆 (Yuèlì):** This is the direct and common translation for “lunar calendar” in Traditional Chinese.
* The descriptions aim to:
* Clearly define what a lunar calendar is.
* Relate it to the lunar cycle and the moon’s phases.
* Optionally (in the second two), mentioning the Chinese Lunar Calendar (農曆) and other associated practices.
* Accuracy: I’ve aimed for grammatically correct Traditional Chinese with appropriate vocabulary.
* Consider your audience. The more descriptive options may be better if you want to add extra context.
* The most suitable will depend on how you’re using the tag and what your users might be looking for.

When adding this to your WordPress tag system, make sure to paste the appropriate text into the Description area for the tag. If you are in the Tag editor, you can cut/paste these blocks directly into the field provided.