Here are a few options for a WordPress post tag description for “雨量” (yǔ liàng – Rainfall) in Traditional Chinese, depending on the context and what you want to convey:

**Option 1: Concise and Informative**

> **描述 (M描述 – Description):** 記錄降雨量的數據與分析。 (jì lù jiàng yǔ liàng de shù jù yǔ fēn xī. – Records and analyzes rainfall data.)

* **Good for:** A general understanding of the tag’s purpose.

**Option 2: More Detailed and Explanatory**

> **描述 (描述 – Description):** 涵蓋量測降雨、降雨強度、累積雨量等與雨水相關的資訊。 涵蓋氣象觀測、水文研究、災害預警等領域的相關內容。 (hán gài liàng cè jiàng yǔ, jiàng yǔ qiáng dù, lěi jī yǔ liàng děng yǔ yǔ shuǐ xiāng guān de zī xùn. Hán gài qì xiàng guān cè, shuǐ wén yán jiū, zāi hài yù jǐng děng lǐng yù de xiāng guān nèi róng. – Covers information related to rainfall, including rainfall measurement, intensity, and accumulated rainfall. Also covers related content from fields such as meteorological observation, hydrological research, and disaster warning.)

* **Good for:** Providing a broader context for people interested in the topic.

**Option 3: Focus on Practical Applications**

> **描述 (描述 – Description):** 關注降雨量對農業、水資源管理、環境保護及防災等方面的影響，提供相關資訊和建議。 (guān zhù jiàng yǔ liàng duì nóng yè, shuǐ zī yuán guǎn lǐ, huán jìng bǎo hù jí fáng zāi deng fāng miàn de yǐng xiǎng, tí gōng xiāng guān zī xùn hé jiàn yì. – Focuses on the impact of rainfall on agriculture, water resource management, environmental protection, and disaster prevention, providing relevant information and recommendations.)

* **Good for:** If your blog covers practical aspects of rainfall and its effects.

**Option 4: Simple and Direct**

> **描述 (描述 – Description):** 關於降雨的資訊 (guān yú jiàng yǔ de zī xùn – Information about rainfall.)

* **Good for:** Very straightforward.

**Recommendation:**

Choose the option that best suits the content of your blog and the type of information you regularly publish under this tag. For most cases, **Option 2** will be the most comprehensive and helpful for your audience. You can always adjust it to better fit your needs.

**Remember to:**

* Make sure to use the correct characters for Traditional Chinese.
* Consider your target audience when choosing the level of detail and complexity.
* Keep it concise and easy to understand.
* You can also use Pinyin to help readers who may not know Traditional Chinese perfectly. (I’ve included it here, but you may remove it.)