Here are a few options for the WordPress post tag description, catering to different levels of helpfulness and clarity:

**Option 1: Simple and Direct (Good for basic understanding)**

* **Description:** 蛋奶素食，不含肉類，但可食用蛋、奶製品。 (Dàn nǎi sùshí, bù hán ròulèi, dàn kě shiyòng dàn, nǎi zhìpǐn.)
* **Translation:** Egg-and-dairy vegetarian, does not contain meat, but can eat eggs and dairy products.

**Option 2: More Detailed (Adds a bit more context)**

* **Description:** 標示為蛋奶素的部落格文章，代表內容符合不食用肉類的飲食原則，可食用雞蛋、牛奶及由其製成的產品。適合對素食有興趣，或是想知道哪些文章符合蛋奶素飲食習慣的朋友。 (Biāozhì wèi dàn nǎi sù de bùluógé wénzhāng, dàibiǎo nèiróng fúhé bù shíyòng ròulèi de yǐnshí yuánzé, kě shíyòng jīdàn, niúnǎi jí yóu qí zhìchéng de chǎnpǐn. Shìhé duì sùshí yǒu xīngqù, huòshì xiǎng zhīdào nǎxiē wénzhāng fúhé dàn nǎi sù yǐnshí xíguàn de péngyǒu.)
* **Translation:** Blog posts tagged “Egg-and-Dairy Vegetarian,” meaning the content follows the dietary principle of not eating meat, while being able to eat eggs, milk, and products made from them. Suitable for friends who are interested in vegetarian diets, or want to know which articles fit with an egg-and-dairy vegetarian eating habit.

**Option 3: Emphasis on Recipes/Content Type (If the blog is mostly about food)**

* **Description:** 提供蛋奶素食譜、美食分享和相關資訊，讓您輕鬆享受美味又健康的蛋奶素料理。 (Tígōng dàn nǎi sù shípǔ, měishí fēnxiǎng hé xiāngguān zīxùn, ràng nín qīngsōng xiǎngshòu měiwèi yòu jiànkāng de dàn nǎi sù liàolǐ.)
* **Translation:** Provides egg-and-dairy vegetarian recipes, food sharing, and related information, allowing you to easily enjoy delicious and healthy egg-and-dairy vegetarian dishes.

**Option 4: Concise & SEO-friendly (for easier searching)**

* **Description:** 關於蛋奶素食的部落格文章。包含蛋、奶製品的素食飲食指南及食譜分享。 (Guānyú dàn nǎi sùshí de bùluógé wénzhāng. Bāohán dàn, nǎi zhìpǐn de sùshí yǐnshí zhǐnán jí shípǔ fēnxiǎng.)
* **Translation:** Blog posts about egg-and-dairy vegetarian food. Includes vegetarian dietary guidelines and recipe sharing featuring eggs and dairy products.

**Key Considerations when choosing:**

* **Target Audience:** Who is your blog for? Are they familiar with vegetarian terminology, or do you need to explain basics?
* **Blog Content:** What kind of posts are you tagging? Is it recipes, general information, restaurant reviews?
* **SEO (Search Engine Optimization):** Are you trying to attract new readers? Option 4 includes keywords that people might search for.
* **Word Count Limits:** WordPress has character limitations for tag descriptions.

Choose the option that best suits your needs. Good luck!