Here are a few options for a WordPress post tag description, depending on the intended meaning:

**Option 1: Literal & General (Suitable for most situations)**

* **Title:** 日照 (Rìzhào)
* **Description:** 陽光照射。泛指充足的日照，例如用於描述城市、植物生長或天氣狀況。 (Yángguāng zhàoshè. fànzhǐ chōngzú de rìzhào, lìrú yòngyú miáoshù chéngshì, zhíwù shēngzhǎng huò tiānqì zhuàngkuàng.) – **Translation:** Sunlight exposure. Generally refers to sufficient sunshine, used for describing cities, plant growth, or weather conditions, for example.

**Option 2: Geographical (If the posts are about Rizhao City, Shandong)**

* **Title:** 日照 (Rìzhào)
* **Description:** 中國山東省地級市日照市相關內容，包含文化、旅遊、經濟等方面。(Zhōngguó Shāndōngshěng dìjíshì Rìzhào shì xiāngguān nèiróng, bāohán wénhuà, lǚyóu, jīngjì děng fāngmiàn.) – **Translation:** Content related to Rizhao City, a prefecture-level city in Shandong Province, China, including culture, tourism, and economy.

**Option 3: Focused on Climate/Weather**

* **Title:** 日照 (Rìzhào)
* **Description:** 描述天氣晴朗、陽光充足的相關文章，包括日照時數和氣候相關内容。 (Miáoshù tiānqì qínglǎng, yángguāng chōngzú de wénzhāng, bāokuò rìzhào shíshù hé qìhòu xiāngguān nèiróng.) – **Translation:** Articles describing sunny weather and abundant sunshine, including sunshine hours and climate-related content.

**Key Considerations when choosing:**

* **Context of the Blog:** What topics does your blog cover? Geography? Gardening? Travel?
* **Specificity:** How specific do you want the tag to be? Do you want to include all articles with sunshine, or just ones focusing on a specific place or subject?
* **Target Audience:** Are your readers familiar with the nuances of Chinese terms? Using a little more explanation can be helpful.

I recommend, unless the blog exclusively deals with the city of Rizhao, to use Option 1 as it’s more widely applicable. You can tailor the description further with additional keywords relating to your blog’s specific niche.